Colors Encyclopedia

Named color

Slate Black

Slate Black color #26282A: RGB 38, 40, 42 and HSL 210°, 5%, 16%. Explore its neutral gray profile, contrast, CSS, palettes and harmonies.

#26282A gray neutral dark
HEX #26282A
RGB rgb(38, 40, 42)
HSL hsl(210 5% 16%)
CMYK cmyk(10, 5, 0, 84)
Luminance 0.021
Contrast Black 1.42:1White 14.79:1

Use this color

Create with Slate Black

Open a professional color tool with #26282A already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with Slate Black and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

CSS Utilities

--color-slate-black: #26282A;
.bg-slate-black { background-color: #26282A; }
.text-slate-black { color: #26282A; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Slate Black Color

Slate Black uses HEX #26282A, RGB 38, 40, 42, and HSL 210°, 5%, 16%. The dataset classifies it in the gray family with neutral temperature and dark visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.021; black contrast is 1.42:1 and white contrast is 14.79:1, making white the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Slate Black against black and white text.

Black text1.42:1AA Fail
White text14.79:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text options#FFFFFF, #F5F5F5
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Slate Black Color Reference Infographic

Save a high-resolution infographic of Slate Black, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
Slate Black color reference infographic showing #26282A, RGB and HSL values, a coordinated palette, and black and white text contrast.
Slate Black color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#2B2927#2B2927#272B2B#272B2B#27272B#27272B#2B2729#2B2729#292B27#292B27
Open full Slate Black harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#52575B#52575BBlack#000000#1E2934#1E2934#292929#292929Dim Grey#696969#003D7A#003D7A

Pairings

White#FFFFFF#2B2927#2B2927#272B2B#272B2B#27272B#27272BMatte Black#1A1A1AWhite Smoke#F5F5F5

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.021
Black text1.42:1AA Fail
White text14.79:1AA Pass
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{
  "hex": "#26282A",
  "rgb": [
    38,
    40,
    42
  ],
  "hsl": [
    210,
    5,
    16
  ],
  "cmyk": [
    10,
    5,
    0,
    84
  ],
  "luminance": 0.021,
  "contrast": {
    "black": 1.42,
    "white": 14.79
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": [
    "#FFFFFF",
    "#F5F5F5"
  ]
}
Harmonies
{
  "complementary": "#2B2927",
  "analogous": [
    "#272B2B",
    "#27272B"
  ],
  "triadic": [
    "#2B2729",
    "#292B27"
  ],
  "tetradic": [
    "#2B272B",
    "#2B2927",
    "#272B27"
  ],
  "splitComplementary": [
    "#2B2727",
    "#2B2B27"
  ],
  "monochromatic": [
    "#52575B",
    "#26282A",
    "#000000"
  ]
}
Variants
{
  "light": "#52575B",
  "dark": "#000000",
  "saturated": "#1E2934",
  "desaturated": "#292929",
  "pastel": "#696969",
  "neon": "#003D7A"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#2B2927",
    "#272B2B",
    "#27272B"
  ],
  "avoid": [
    "#292929",
    "#52575B"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#52575B",
    "#292929"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "asphalt",
    "rubber",
    "raisin",
    "charcoal-blue",
    "gunmetal"
  ],
  "generatedPalettes": [
    "slate-black"
  ],
  "generatedComparisons": [
    "asphalt-vs-slate-black",
    "raisin-vs-slate-black",
    "rubber-vs-slate-black"
  ],
  "relatedFamilies": [
    "/colors/by-family/gray",
    "/colors/by-temperature/neutral",
    "/colors/by-tone/dark"
  ],
  "relatedTools": [
    "/harmonies/slate-black",
    "/wcag/slate-black",
    "/css/colors/slate-black",
    "/hex/26282a",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/gray",
      "/colors/by-temperature/neutral",
      "/colors/by-tone/dark"
    ],
    "narrower": [
      "/palettes/slate-black"
    ],
    "related": [
      "/colors/asphalt",
      "/colors/rubber",
      "/colors/raisin",
      "/colors/charcoal-blue",
      "/colors/gunmetal",
      "/compare/asphalt-vs-slate-black",
      "/compare/raisin-vs-slate-black",
      "/compare/rubber-vs-slate-black",
      "/harmonies/slate-black",
      "/wcag/slate-black",
      "/css/colors/slate-black",
      "/hex/26282a",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "slate-black",
  "name": "Slate Black",
  "hex": "#26282A",
  "uses": [
    "backgrounds",
    "typography",
    "product surfaces"
  ],
  "psychology": {
    "associations": [
      "restraint",
      "clarity",
      "balance"
    ],
    "contexts": [
      "interfaces",
      "architecture",
      "editorial design",
      "packaging"
    ],
    "avoidIn": [
      "high-energy accent-only palettes"
    ]
  },
  "aliases": [],
  "sourceType": "curated",
  "confidence": "medium",
  "reviewStatus": "manual",
  "sourceUrl": "https://www.colorsencyclopedia.com/assets/colors.json",
  "origin": {
    "type": "common",
    "notes": "Curated common color reference used in design and editorial color systems."
  },
  "family": "gray",
  "temperature": "neutral",
  "tone": [
    "dark"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "gray",
    "neutral",
    "dark",
    "backgrounds",
    "typography",
    "product-surfaces",
    "restraint",
    "clarity",
    "balance"
  ],
  "popularity": 84,
  "rgb": [
    38,
    40,
    42
  ],
  "hsl": [
    210,
    5,
    16
  ],
  "cmyk": [
    10,
    5,
    0,
    84
  ],
  "luminance": 0.021,
  "contrast": {
    "black": 1.42,
    "white": 14.79
  },
  "harmonies": {
    "complementary": "#2B2927",
    "analogous": [
      "#272B2B",
      "#27272B"
    ],
    "triadic": [
      "#2B2729",
      "#292B27"
    ],
    "tetradic": [
      "#2B272B",
      "#2B2927",
      "#272B27"
    ],
    "splitComplementary": [
      "#2B2727",
      "#2B2B27"
    ],
    "monochromatic": [
      "#52575B",
      "#26282A",
      "#000000"
    ]
  },
  "variants": {
    "light": "#52575B",
    "dark": "#000000",
    "saturated": "#1E2934",
    "desaturated": "#292929",
    "pastel": "#696969",
    "neon": "#003D7A"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  "css": {
    "variable": "--color-slate-black: #26282A;",
    "utility": ".bg-slate-black { background-color: #26282A; }",
    "textUtility": ".text-slate-black { color: #26282A; }"
  },
  "nearestColors": [
    "asphalt",
    "rubber",
    "raisin",
    "charcoal-blue",
    "gunmetal"
  ],
  "generatedPalettes": [
    "slate-black"
  ],
  "generatedComparisons": [
    "asphalt-vs-slate-black",
    "raisin-vs-slate-black",
    "rubber-vs-slate-black"
  ],
  "relatedFamilies": [
    "/colors/by-family/gray",
    "/colors/by-temperature/neutral",
    "/colors/by-tone/dark"
  ],
  "relatedTools": [
    "/harmonies/slate-black",
    "/wcag/slate-black",
    "/css/colors/slate-black",
    "/hex/26282a",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/gray",
      "/colors/by-temperature/neutral",
      "/colors/by-tone/dark"
    ],
    "narrower": [
      "/palettes/slate-black"
    ],
    "related": [
      "/colors/asphalt",
      "/colors/rubber",
      "/colors/raisin",
      "/colors/charcoal-blue",
      "/colors/gunmetal",
      "/compare/asphalt-vs-slate-black",
      "/compare/raisin-vs-slate-black",
      "/compare/rubber-vs-slate-black",
      "/harmonies/slate-black",
      "/wcag/slate-black",
      "/css/colors/slate-black",
      "/hex/26282a",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#2B2927",
      "#272B2B",
      "#27272B"
    ],
    "avoid": [
      "#292929",
      "#52575B"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#52575B",
      "#292929"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Asphalt#2B2B2B
Rubber#2A2725
Raisin#242124
Charcoal Blue#263238
Gunmetal#2A3439

Related Color Guides

Gray color familyBrowse named gray colors and compare nearby swatches.Neutral colorsExplore colors with neutral temperature behavior.Dark colorsFind colors with dark visual character.Slate Black accessibilityCheck contrast and WCAG text options for #26282A.Slate Black CSS utilitiesUse Slate Black in CSS variables and utility classes.#26282A HEX atlasOpen the permanent HEX atlas record for conversions and variants.Slate Black paletteOpen the generated palette based on Slate Black.Slate Black harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.