Colors Encyclopedia

Generated palette

Nickel Palette

Nickel Palette is a generated palette built from #727472, #747274, #737472, #727473. 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.

Nickel Palette combines primary #727472, secondary #747274, surface #737472, background #727473, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a gray palette, muted palette, light 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
5colors
Gray palettedominant group
5use 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#727472Nickel
Secondary#747274#747274
Surface#737472#737472
Background#727473#727473
Accent#FFFFFFWhite

CSS Variables

--palette-nickel-primary: #727472;
--palette-nickel-secondary: #747274;
--palette-nickel-surface: #737472;
--palette-nickel-background: #727473;
--palette-nickel-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#727472
Black 4.46:1 · White 4.71:1
Best #FFFFFF
Secondary#747274
Black 4.4:1 · White 4.77:1
Best #FFFFFF
Surface#737472
Black 4.47:1 · White 4.7:1
Best #FFFFFF
Background#727473
Black 4.46:1 · White 4.71:1
Best #FFFFFF
Accent#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 Nickel Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.1728
Black text4.46:1AA Fail
White text4.71:1AA Pass
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": "#727472",
    "name": "Nickel"
  },
  {
    "role": "secondary",
    "hex": "#747274",
    "name": "#747274"
  },
  {
    "role": "surface",
    "hex": "#737472",
    "name": "#737472"
  },
  {
    "role": "background",
    "hex": "#727473",
    "name": "#727473"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#727472",
    "name": "Nickel",
    "blackContrast": 4.46,
    "whiteContrast": 4.71,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "secondary",
    "hex": "#747274",
    "name": "#747274",
    "blackContrast": 4.4,
    "whiteContrast": 4.77,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "surface",
    "hex": "#737472",
    "name": "#737472",
    "blackContrast": 4.47,
    "whiteContrast": 4.7,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "background",
    "hex": "#727473",
    "name": "#727473",
    "blackContrast": 4.46,
    "whiteContrast": 4.71,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  }
]
Semantic groups
[
  "nickel palette",
  "generated palette",
  "gray palette",
  "muted palette",
  "light palette",
  "neutral palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "quiet UI themes"
]
CSS variables
"--palette-nickel-primary: #727472;\n--palette-nickel-secondary: #747274;\n--palette-nickel-surface: #737472;\n--palette-nickel-background: #727473;\n--palette-nickel-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "nickel",
  "name": "Nickel Palette",
  "type": "generated",
  "sourceColor": "nickel",
  "description": "Generated palette built from Nickel, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Nickel Palette combines primary #727472, secondary #747274, surface #737472, background #727473, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a gray palette, muted palette, light 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": [
    "nickel palette",
    "generated palette",
    "gray palette",
    "muted palette",
    "light palette",
    "neutral palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "quiet UI themes"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#727472",
      "slug": "nickel",
      "name": "Nickel",
      "rgb": [
        114,
        116,
        114
      ],
      "hsl": [
        120,
        1,
        45
      ],
      "cmyk": [
        2,
        0,
        2,
        55
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.1728,
      "contrast": {
        "black": 4.46,
        "white": 4.71
      },
      "wcag": {
        "AA": [
          "#FFFFFF"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/colors/nickel/"
    },
    {
      "role": "secondary",
      "hex": "#747274",
      "slug": null,
      "name": "#747274",
      "rgb": [
        116,
        114,
        116
      ],
      "hsl": [
        300,
        1,
        45
      ],
      "cmyk": [
        0,
        2,
        0,
        55
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.1701,
      "contrast": {
        "black": 4.4,
        "white": 4.77
      },
      "wcag": {
        "AA": [
          "#FFFFFF"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/hex/747274/"
    },
    {
      "role": "surface",
      "hex": "#737472",
      "slug": null,
      "name": "#737472",
      "rgb": [
        115,
        116,
        114
      ],
      "hsl": [
        90,
        1,
        45
      ],
      "cmyk": [
        1,
        0,
        2,
        55
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.1735,
      "contrast": {
        "black": 4.47,
        "white": 4.7
      },
      "wcag": {
        "AA": [
          "#FFFFFF"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/hex/737472/"
    },
    {
      "role": "background",
      "hex": "#727473",
      "slug": null,
      "name": "#727473",
      "rgb": [
        114,
        116,
        115
      ],
      "hsl": [
        150,
        1,
        45
      ],
      "cmyk": [
        2,
        0,
        1,
        55
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.1731,
      "contrast": {
        "black": 4.46,
        "white": 4.71
      },
      "wcag": {
        "AA": [
          "#FFFFFF"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/hex/727473/"
    },
    {
      "role": "accent",
      "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": "#727472",
      "name": "Nickel"
    },
    {
      "role": "secondary",
      "hex": "#747274",
      "name": "#747274"
    },
    {
      "role": "surface",
      "hex": "#737472",
      "name": "#737472"
    },
    {
      "role": "background",
      "hex": "#727473",
      "name": "#727473"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#727472",
      "name": "Nickel",
      "blackContrast": 4.46,
      "whiteContrast": 4.71,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "secondary",
      "hex": "#747274",
      "name": "#747274",
      "blackContrast": 4.4,
      "whiteContrast": 4.77,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "surface",
      "hex": "#737472",
      "name": "#737472",
      "blackContrast": 4.47,
      "whiteContrast": 4.7,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "background",
      "hex": "#727473",
      "name": "#727473",
      "blackContrast": 4.46,
      "whiteContrast": 4.71,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  ],
  "cssVariables": "--palette-nickel-primary: #727472;\n--palette-nickel-secondary: #747274;\n--palette-nickel-surface: #737472;\n--palette-nickel-background: #727473;\n--palette-nickel-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/nickel.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/nickel.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/nickel/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/nickel.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.Nickel Palette JSONOpen the machine-readable palette dataset.Nickel colorOpen the source color reference for this generated palette.Gray colorsExplore gray colors related to this palette.Muted colorsExplore muted colors used in palette systems.Light colorsExplore light colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.