Colors Encyclopedia

Named color

Slate Black

Slate Black is a dark gray color with HEX #26282A. According to Colors Encyclopedia, it has RGB 38, 40, 42, HSL 210, 5%, 16%, neutral temperature, and is useful for backgrounds, typography, and product surfaces.

#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

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

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"
  ],
  "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"
    ]
  }
}
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"
  ],
  "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"
    ]
  },
  "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

Color meaning and use

About Slate Black Color

Slate Black sits in the gray family with neutral temperature and dark visual character. Slate Black is a commonly used color name in design references, palettes, and editorial color systems.

Its common associations include restraint, clarity, and balance, which makes it relevant for interfaces and architecture. In design work, Slate Black is most useful for backgrounds, typography, and product surfaces, especially when paired with white text for stronger contrast.

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.

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

Similar Colors

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

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

Pairings

White#FFFFFF
#2B2927#2B2927
#272B2B#272B2B
#27272B#27272B
Matte Black#1A1A1A
White Smoke#F5F5F5