Harmony system

Matte Black Color Harmonies

Matte Black harmonies from #1A1A1A: complementary #1A1A1A, plus five harmony groups with CSS and contrast data.

Matte Black is a neutral gray at hue 0°, saturation 0% and lightness 10%. The sets below keep those measurements visible while moving around the color wheel, making it easier to choose close hues, direct contrast or a wider token system.

SourceMatte Black · #1A1A1A
Groups6
Palette colors3
FamilyGray

How the harmony works

Matte Black Harmony Guide

Matte Black harmonies are computed from hue relationships rather than subjective palette names. Complementary colors create direct contrast, analogous colors stay close to the source hue, triadic and tetradic groups add broader palette range, split-complementary colors soften contrast, and monochromatic variants keep the same hue for UI surfaces and states.

Machine-readable data

Machine-Readable Matte Black Harmony Data (JSON)

Structured harmony groups, source color metadata, CSS tokens, accessibility notes, and related API endpoints for Matte Black.

AI-Ready Dataset v1.0.0
Luminance0.0103
Black text1.21:1AA Fail
White text17.41:1AA Pass
sourceColorCanonical source color
harmonyGroupsComplementary, analogous, triadic, tetradic, split-complementary, and monochromatic sets
signaturePaletteCompact harmony preview palette
semanticGroupsAI-ready harmony labels
useCasesDesign and retrieval contexts
accessibilityNotesContrast guidance for the source color
Download JSON Open API
Structured sections
Source color
{
  "slug": "matte-black",
  "name": "Matte Black",
  "hex": "#1A1A1A",
  "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
}
Harmony groups
[
  {
    "key": "complementary",
    "label": "Complementary",
    "behavior": "maximum hue contrast",
    "bestUse": "accent colors, strong calls to action, visual opposition",
    "description": "Complementary harmony uses the color opposite the source hue. It creates the strongest direct relationship in the wheel, so it is best for accents, contrast anchors, and palettes that need immediate separation.",
    "colors": [
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      }
    ],
    "anchor": "matte-black-harmony-complementary"
  },
  {
    "key": "analogous",
    "label": "Analogous",
    "behavior": "neighboring hue movement",
    "bestUse": "calm palettes, gradients, natural transitions",
    "description": "Analogous harmony uses hues close to the source color. It keeps the palette visually connected and is useful for quiet interfaces, editorial color systems, and smooth background or gradient work.",
    "colors": [
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      }
    ],
    "anchor": "matte-black-harmony-analogous"
  },
  {
    "key": "triadic",
    "label": "Triadic",
    "behavior": "three evenly spaced hues",
    "bestUse": "balanced contrast, playful systems, broad palette range",
    "description": "Triadic harmony places colors around the wheel at equal intervals. It gives more range than analogous harmony while keeping a stable mathematical relationship between the selected hues.",
    "colors": [
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      }
    ],
    "anchor": "matte-black-harmony-triadic"
  },
  {
    "key": "tetradic",
    "label": "Tetradic",
    "behavior": "two complementary pairs",
    "bestUse": "large design systems, dashboards, multi-state UI",
    "description": "Tetradic harmony creates a four-color system from two complementary relationships. It is useful when a palette needs multiple roles, but the colors should be assigned carefully so one hue remains dominant.",
    "colors": [
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      }
    ],
    "anchor": "matte-black-harmony-tetradic"
  },
  {
    "key": "splitComplementary",
    "label": "Split Complementary",
    "behavior": "softened complementary contrast",
    "bestUse": "brand palettes, accent pairs, less aggressive contrast",
    "description": "Split-complementary harmony replaces the direct opposite with the two hues beside it. This keeps useful contrast while reducing the visual tension of a pure complementary pair.",
    "colors": [
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      }
    ],
    "anchor": "matte-black-harmony-split-complementary"
  },
  {
    "key": "monochromatic",
    "label": "Monochromatic",
    "behavior": "same hue, different values",
    "bestUse": "surfaces, states, elevation, restrained UI themes",
    "description": "Monochromatic harmony keeps the source hue and changes lightness. It is the safest system for tonal UI, cards, hover states, shadows, backgrounds, and subtle visual hierarchy.",
    "colors": [
      {
        "hex": "#474747",
        "name": "#474747",
        "slug": null,
        "rgb": [
          71,
          71,
          71
        ],
        "hsl": [
          0,
          0,
          28
        ],
        "cmyk": [
          0,
          0,
          0,
          72
        ],
        "luminance": 0.063,
        "contrast": {
          "black": 2.26,
          "white": 9.29
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": null,
        "apiUrl": null
      },
      {
        "hex": "#1A1A1A",
        "name": "Matte Black",
        "slug": "matte-black",
        "rgb": [
          26,
          26,
          26
        ],
        "hsl": [
          0,
          0,
          10
        ],
        "cmyk": [
          0,
          0,
          0,
          90
        ],
        "luminance": 0.0103,
        "contrast": {
          "black": 1.21,
          "white": 17.41
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
      },
      {
        "hex": "#000000",
        "name": "Black",
        "slug": "black",
        "rgb": [
          0,
          0,
          0
        ],
        "hsl": [
          0,
          0,
          0
        ],
        "cmyk": [
          0,
          0,
          0,
          100
        ],
        "luminance": 0,
        "contrast": {
          "black": 1,
          "white": 21
        },
        "wcag": {
          "AA": [
            "#FFFFFF",
            "#F5F5F5"
          ],
          "AAA": [
            "#FFFFFF",
            "#F5F5F5"
          ]
        },
        "url": "https://www.colorsencyclopedia.com/colors/black/",
        "apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
      }
    ],
    "anchor": "matte-black-harmony-monochromatic"
  }
]
Signature palette
[
  "#1A1A1A",
  "#474747",
  "#000000"
]
Accessibility notes
[
  "Black contrast on Matte Black: 1.21:1",
  "White contrast on Matte Black: 17.41:1",
  "AA text options: #FFFFFF, #F5F5F5"
]
CSS tokens
":root {\n  --color-matte-black: #1A1A1A;\n  --matte-black-complementary-1: #1A1A1A;\n  --matte-black-analogous-1: #1A1A1A;\n  --matte-black-analogous-2: #1A1A1A;\n  --matte-black-triadic-1: #1A1A1A;\n  --matte-black-triadic-2: #1A1A1A;\n  --matte-black-tetradic-1: #1A1A1A;\n  --matte-black-tetradic-2: #1A1A1A;\n  --matte-black-tetradic-3: #1A1A1A;\n  --matte-black-split-complementary-1: #1A1A1A;\n  --matte-black-split-complementary-2: #1A1A1A;\n  --matte-black-monochromatic-1: #474747;\n  --matte-black-monochromatic-2: #1A1A1A;\n  --matte-black-monochromatic-3: #000000;\n}\n\n.palette-matte-black-harmony {\n  color: #FFFFFF;\n  background: linear-gradient(135deg, #1A1A1A, #474747, #000000);\n}"
Full JSON dataset
{
  "datasetVersion": "1.0.0",
  "slug": "matte-black",
  "name": "Matte Black",
  "hex": "#1A1A1A",
  "rgb": [
    26,
    26,
    26
  ],
  "hsl": [
    0,
    0,
    10
  ],
  "cmyk": [
    0,
    0,
    0,
    90
  ],
  "family": "gray",
  "temperature": "neutral",
  "tone": [
    "dark"
  ],
  "luminance": 0.0103,
  "contrast": {
    "black": 1.21,
    "white": 17.41
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  "sourceColor": {
    "slug": "matte-black",
    "name": "Matte Black",
    "hex": "#1A1A1A",
    "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
  },
  "harmonyGroups": [
    {
      "key": "complementary",
      "label": "Complementary",
      "behavior": "maximum hue contrast",
      "bestUse": "accent colors, strong calls to action, visual opposition",
      "description": "Complementary harmony uses the color opposite the source hue. It creates the strongest direct relationship in the wheel, so it is best for accents, contrast anchors, and palettes that need immediate separation.",
      "colors": [
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        }
      ],
      "anchor": "matte-black-harmony-complementary"
    },
    {
      "key": "analogous",
      "label": "Analogous",
      "behavior": "neighboring hue movement",
      "bestUse": "calm palettes, gradients, natural transitions",
      "description": "Analogous harmony uses hues close to the source color. It keeps the palette visually connected and is useful for quiet interfaces, editorial color systems, and smooth background or gradient work.",
      "colors": [
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        }
      ],
      "anchor": "matte-black-harmony-analogous"
    },
    {
      "key": "triadic",
      "label": "Triadic",
      "behavior": "three evenly spaced hues",
      "bestUse": "balanced contrast, playful systems, broad palette range",
      "description": "Triadic harmony places colors around the wheel at equal intervals. It gives more range than analogous harmony while keeping a stable mathematical relationship between the selected hues.",
      "colors": [
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        }
      ],
      "anchor": "matte-black-harmony-triadic"
    },
    {
      "key": "tetradic",
      "label": "Tetradic",
      "behavior": "two complementary pairs",
      "bestUse": "large design systems, dashboards, multi-state UI",
      "description": "Tetradic harmony creates a four-color system from two complementary relationships. It is useful when a palette needs multiple roles, but the colors should be assigned carefully so one hue remains dominant.",
      "colors": [
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        }
      ],
      "anchor": "matte-black-harmony-tetradic"
    },
    {
      "key": "splitComplementary",
      "label": "Split Complementary",
      "behavior": "softened complementary contrast",
      "bestUse": "brand palettes, accent pairs, less aggressive contrast",
      "description": "Split-complementary harmony replaces the direct opposite with the two hues beside it. This keeps useful contrast while reducing the visual tension of a pure complementary pair.",
      "colors": [
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        }
      ],
      "anchor": "matte-black-harmony-split-complementary"
    },
    {
      "key": "monochromatic",
      "label": "Monochromatic",
      "behavior": "same hue, different values",
      "bestUse": "surfaces, states, elevation, restrained UI themes",
      "description": "Monochromatic harmony keeps the source hue and changes lightness. It is the safest system for tonal UI, cards, hover states, shadows, backgrounds, and subtle visual hierarchy.",
      "colors": [
        {
          "hex": "#474747",
          "name": "#474747",
          "slug": null,
          "rgb": [
            71,
            71,
            71
          ],
          "hsl": [
            0,
            0,
            28
          ],
          "cmyk": [
            0,
            0,
            0,
            72
          ],
          "luminance": 0.063,
          "contrast": {
            "black": 2.26,
            "white": 9.29
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": null,
          "apiUrl": null
        },
        {
          "hex": "#1A1A1A",
          "name": "Matte Black",
          "slug": "matte-black",
          "rgb": [
            26,
            26,
            26
          ],
          "hsl": [
            0,
            0,
            10
          ],
          "cmyk": [
            0,
            0,
            0,
            90
          ],
          "luminance": 0.0103,
          "contrast": {
            "black": 1.21,
            "white": 17.41
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/matte-black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/matte-black.json"
        },
        {
          "hex": "#000000",
          "name": "Black",
          "slug": "black",
          "rgb": [
            0,
            0,
            0
          ],
          "hsl": [
            0,
            0,
            0
          ],
          "cmyk": [
            0,
            0,
            0,
            100
          ],
          "luminance": 0,
          "contrast": {
            "black": 1,
            "white": 21
          },
          "wcag": {
            "AA": [
              "#FFFFFF",
              "#F5F5F5"
            ],
            "AAA": [
              "#FFFFFF",
              "#F5F5F5"
            ]
          },
          "url": "https://www.colorsencyclopedia.com/colors/black/",
          "apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
        }
      ],
      "anchor": "matte-black-harmony-monochromatic"
    }
  ],
  "signaturePalette": [
    "#1A1A1A",
    "#474747",
    "#000000"
  ],
  "semanticGroups": [
    "gray harmony",
    "neutral harmony",
    "dark harmony",
    "matte black palette system"
  ],
  "useCases": [
    "palette generation",
    "brand color exploration",
    "UI accent planning",
    "CSS design tokens",
    "AI color retrieval"
  ],
  "accessibilityNotes": [
    "Black contrast on Matte Black: 1.21:1",
    "White contrast on Matte Black: 17.41:1",
    "AA text options: #FFFFFF, #F5F5F5"
  ],
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/harmonies/matte-black.json",
    "https://www.colorsencyclopedia.com/api/colors/matte-black.json",
    "https://www.colorsencyclopedia.com/api/hex/1a1a1a.json"
  ],
  "url": "https://www.colorsencyclopedia.com/harmonies/matte-black/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/harmonies/matte-black.json",
  "cssSnippet": ":root {\n  --color-matte-black: #1A1A1A;\n  --matte-black-complementary-1: #1A1A1A;\n  --matte-black-analogous-1: #1A1A1A;\n  --matte-black-analogous-2: #1A1A1A;\n  --matte-black-triadic-1: #1A1A1A;\n  --matte-black-triadic-2: #1A1A1A;\n  --matte-black-tetradic-1: #1A1A1A;\n  --matte-black-tetradic-2: #1A1A1A;\n  --matte-black-tetradic-3: #1A1A1A;\n  --matte-black-split-complementary-1: #1A1A1A;\n  --matte-black-split-complementary-2: #1A1A1A;\n  --matte-black-monochromatic-1: #474747;\n  --matte-black-monochromatic-2: #1A1A1A;\n  --matte-black-monochromatic-3: #000000;\n}\n\n.palette-matte-black-harmony {\n  color: #FFFFFF;\n  background: linear-gradient(135deg, #1A1A1A, #474747, #000000);\n}"
}

CSS Harmony Tokens

Use these tokens when Matte Black needs a complete palette system instead of a single color variable.

:root {
  --color-matte-black: #1A1A1A;
  --matte-black-complementary-1: #1A1A1A;
  --matte-black-analogous-1: #1A1A1A;
  --matte-black-analogous-2: #1A1A1A;
  --matte-black-triadic-1: #1A1A1A;
  --matte-black-triadic-2: #1A1A1A;
  --matte-black-tetradic-1: #1A1A1A;
  --matte-black-tetradic-2: #1A1A1A;
  --matte-black-tetradic-3: #1A1A1A;
  --matte-black-split-complementary-1: #1A1A1A;
  --matte-black-split-complementary-2: #1A1A1A;
  --matte-black-monochromatic-1: #474747;
  --matte-black-monochromatic-2: #1A1A1A;
  --matte-black-monochromatic-3: #000000;
}

.palette-matte-black-harmony {
  color: #FFFFFF;
  background: linear-gradient(135deg, #1A1A1A, #474747, #000000);
}

Matte Black Harmony Groups

Open a group to inspect its generated colors, intended behavior, and best design use. Anchor links above open the matching group directly.

Complementary Harmony1 colors · maximum hue contrast

The complementary set starts from Matte Black #1A1A1A and produces #1A1A1A. Its maximum hue contrast relationship suits accent colors, strong calls to action, and visual opposition. The generated values match Matte Black in the named-color dataset.

Behaviormaximum hue contrast
Best useaccent colors, strong calls to action, visual opposition
Source colorMatte Black · #1A1A1A
Analogous Harmony2 colors · neighboring hue movement

The analogous set starts from Matte Black #1A1A1A and produces #1A1A1A. Its neighboring hue movement relationship suits calm palettes, gradients, and natural transitions. The generated values match Matte Black in the named-color dataset.

Behaviorneighboring hue movement
Best usecalm palettes, gradients, natural transitions
Source colorMatte Black · #1A1A1A
Triadic Harmony2 colors · three evenly spaced hues

The triadic set starts from Matte Black #1A1A1A and produces #1A1A1A. Its three evenly spaced hues relationship suits balanced contrast, playful systems, and broad palette range. The generated values match Matte Black in the named-color dataset.

Behaviorthree evenly spaced hues
Best usebalanced contrast, playful systems, broad palette range
Source colorMatte Black · #1A1A1A
Tetradic Harmony3 colors · two complementary pairs

The tetradic set starts from Matte Black #1A1A1A and produces #1A1A1A. Its two complementary pairs relationship suits large design systems, dashboards, and multi-state UI. The generated values match Matte Black in the named-color dataset.

Behaviortwo complementary pairs
Best uselarge design systems, dashboards, multi-state UI
Source colorMatte Black · #1A1A1A
Split Complementary Harmony2 colors · softened complementary contrast

The split complementary set starts from Matte Black #1A1A1A and produces #1A1A1A. Its softened complementary contrast relationship suits brand palettes, accent pairs, and less aggressive contrast. The generated values match Matte Black in the named-color dataset.

Behaviorsoftened complementary contrast
Best usebrand palettes, accent pairs, less aggressive contrast
Source colorMatte Black · #1A1A1A
Monochromatic Harmony3 colors · same hue, different values

The monochromatic set starts from Matte Black #1A1A1A and produces #474747, #1A1A1A, and #000000. Its same hue, different values relationship suits surfaces, states, elevation, and restrained UI themes. The generated values match Matte Black and Black in the named-color dataset.

Behaviorsame hue, different values
Best usesurfaces, states, elevation, restrained UI themes
Source colorMatte Black · #1A1A1A