Colors Encyclopedia

Generated palette

Mercury Palette

Mercury Palette is a generated palette built from #EBEBEB, #000000, #FFFFFF. According to Colors Encyclopedia, this palette can be used as a CSS-ready color set with linked HEX values, source color context, and machine-readable palette data.

Mercury Palette combines primary #EBEBEB, secondary #000000, surface #FFFFFF. According to Colors Encyclopedia, the palette works as a gray palette, light palette, dark palette system for design system tokens, CSS variables, palette reference, and AI color ingestion, with each color mapped to roles, contrast data, CSS tokens, and machine-readable JSON.

All palettesSource colorAPI
3colors
Gray palettedominant group
4use cases

Palette Color Roles

Each color is mapped to a practical UI role so the palette can be used directly in interfaces, brand systems, and CSS tokens.

Primary#EBEBEBMercury
Secondary#000000Black
Surface#FFFFFFWhite

CSS Variables

--palette-mercury-primary: #EBEBEB;
--palette-mercury-secondary: #000000;
--palette-mercury-surface: #FFFFFF;

Accessibility Snapshot

Contrast checks for each palette color against black and white text, with best foreground guidance.

Primary#EBEBEB
Black 17.62:1 · White 1.19:1
Best #000000
Secondary#000000
Black 1:1 · White 21:1
Best #FFFFFF
Surface#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

A compact preview of how the palette behaves across common interface components.

ButtonPrimary action with checked foreground contrast.
CardSurface treatment using palette roles.
AlertBackground, text, and accent roles together.
NavbarSecondary role with accent state.

Machine-readable data

Machine-Readable Mercury Palette Data (JSON)

Structured palette data for Mercury Palette, including color roles, accessibility, semantic groups, use cases, CSS variables, and API links.

AI-Ready Dataset v1.0.0
Luminance0.8308
Black text17.62:1AA Pass
White text1.19:1AA Fail
colorsPalette colors with roles and color systems
rolesPrimary, secondary, surface, background, and accent mapping
accessibilityContrast and WCAG text options by palette color
semanticGroupsAI-readable palette labels
useCasesDesign and implementation contexts
cssVariablesCopy-ready CSS custom properties
Download JSON Open API
Structured sections
Roles
[
  {
    "role": "primary",
    "hex": "#EBEBEB",
    "name": "Mercury"
  },
  {
    "role": "secondary",
    "hex": "#000000",
    "name": "Black"
  },
  {
    "role": "surface",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#EBEBEB",
    "name": "Mercury",
    "blackContrast": 17.62,
    "whiteContrast": 1.19,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  {
    "role": "secondary",
    "hex": "#000000",
    "name": "Black",
    "blackContrast": 1,
    "whiteContrast": 21,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "surface",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  }
]
Semantic groups
[
  "mercury palette",
  "generated palette",
  "gray palette",
  "light palette",
  "dark palette",
  "neutral palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion"
]
CSS variables
"--palette-mercury-primary: #EBEBEB;\n--palette-mercury-secondary: #000000;\n--palette-mercury-surface: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "mercury",
  "name": "Mercury Palette",
  "type": "generated",
  "sourceColor": "mercury",
  "description": "Generated palette built from Mercury, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Mercury Palette combines primary #EBEBEB, secondary #000000, surface #FFFFFF. According to Colors Encyclopedia, the palette works as a gray palette, light palette, dark palette system for design system tokens, CSS variables, palette reference, and AI color ingestion, with each color mapped to roles, contrast data, CSS tokens, and machine-readable JSON.",
  "semanticGroups": [
    "mercury palette",
    "generated palette",
    "gray palette",
    "light palette",
    "dark palette",
    "neutral palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#EBEBEB",
      "slug": "mercury",
      "name": "Mercury",
      "rgb": [
        235,
        235,
        235
      ],
      "hsl": [
        0,
        0,
        92
      ],
      "cmyk": [
        0,
        0,
        0,
        8
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "light"
      ],
      "luminance": 0.8308,
      "contrast": {
        "black": 17.62,
        "white": 1.19
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/mercury/"
    },
    {
      "role": "secondary",
      "hex": "#000000",
      "slug": "black",
      "name": "Black",
      "rgb": [
        0,
        0,
        0
      ],
      "hsl": [
        0,
        0,
        0
      ],
      "cmyk": [
        0,
        0,
        0,
        100
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "dark",
        "neutral"
      ],
      "luminance": 0,
      "contrast": {
        "black": 1,
        "white": 21
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/black/"
    },
    {
      "role": "surface",
      "hex": "#FFFFFF",
      "slug": "white",
      "name": "White",
      "rgb": [
        255,
        255,
        255
      ],
      "hsl": [
        0,
        0,
        100
      ],
      "cmyk": [
        0,
        0,
        0,
        0
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "light",
        "neutral"
      ],
      "luminance": 1,
      "contrast": {
        "black": 21,
        "white": 1
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/white/"
    }
  ],
  "roles": [
    {
      "role": "primary",
      "hex": "#EBEBEB",
      "name": "Mercury"
    },
    {
      "role": "secondary",
      "hex": "#000000",
      "name": "Black"
    },
    {
      "role": "surface",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#EBEBEB",
      "name": "Mercury",
      "blackContrast": 17.62,
      "whiteContrast": 1.19,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    {
      "role": "secondary",
      "hex": "#000000",
      "name": "Black",
      "blackContrast": 1,
      "whiteContrast": 21,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "surface",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  ],
  "cssVariables": "--palette-mercury-primary: #EBEBEB;\n--palette-mercury-secondary: #000000;\n--palette-mercury-surface: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/mercury.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/mercury.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/mercury/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/mercury.json"
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Related Palette Guides

All color palettesBrowse curated and generated palette references.Mercury Palette JSONOpen the machine-readable palette dataset.Mercury colorOpen the source color reference for this generated palette.Gray colorsExplore gray colors related to this palette.Light colorsExplore light colors used in palette systems.Dark colorsExplore dark colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.