Colors Encyclopedia

Generated palette

Dark Slate Blue Palette

Dark Slate Blue Palette: #483D8B, #808A3D, #3D598A, #6E3D8A. Check roles, contrast and CSS variables; open source-color links and JSON.

Dark Slate Blue Palette assigns primary #483D8B, secondary #808A3D, surface #3D598A, background #6E3D8A, accent #FFFFFF. The set spans Blue, Yellow, Purple, and Gray families with cool, warm, and neutral temperatures. Luminance runs from #483D8B at 0.0658 to #FFFFFF at 1; black gives higher contrast on 2 of 5 values.

All palettesSource colorAPI
5colors
Blue palettedominant group
6use cases

Palette Color Roles

Dark Slate Blue Palette maps 5 colors to practical UI roles for interfaces, brand systems, and CSS tokens.

Primary#483D8BDark Slate Blue
Secondary#808A3D#808A3D
Surface#3D598A#3D598A
Background#6E3D8A#6E3D8A
Accent#FFFFFFWhite

CSS Variables

--palette-dark-slate-blue-primary: #483D8B;
--palette-dark-slate-blue-secondary: #808A3D;
--palette-dark-slate-blue-surface: #3D598A;
--palette-dark-slate-blue-background: #6E3D8A;
--palette-dark-slate-blue-accent: #FFFFFF;

Accessibility Snapshot

Compare all 5 Dark Slate Blue Palette values against black and white text, with the stronger standard foreground identified for each role.

Primary#483D8B
Black 2.32:1 · White 9.07:1
Best #FFFFFF
Secondary#808A3D
Black 5.62:1 · White 3.74:1
Best #000000
Surface#3D598A
Black 2.99:1 · White 7.01:1
Best #FFFFFF
Background#6E3D8A
Black 2.7:1 · White 7.78:1
Best #FFFFFF
Accent#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

Preview how the Dark Slate Blue Palette roles behave together across common interface components before copying the CSS variables.

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 Dark Slate Blue Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.0658
Black text2.32:1AA Fail
White text9.07:1AA 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": "#483D8B",
    "name": "Dark Slate Blue"
  },
  {
    "role": "secondary",
    "hex": "#808A3D",
    "name": "#808A3D"
  },
  {
    "role": "surface",
    "hex": "#3D598A",
    "name": "#3D598A"
  },
  {
    "role": "background",
    "hex": "#6E3D8A",
    "name": "#6E3D8A"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#483D8B",
    "name": "Dark Slate Blue",
    "blackContrast": 2.32,
    "whiteContrast": 9.07,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "secondary",
    "hex": "#808A3D",
    "name": "#808A3D",
    "blackContrast": 5.62,
    "whiteContrast": 3.74,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "surface",
    "hex": "#3D598A",
    "name": "#3D598A",
    "blackContrast": 2.99,
    "whiteContrast": 7.01,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF"
    ]
  },
  {
    "role": "background",
    "hex": "#6E3D8A",
    "name": "#6E3D8A",
    "blackContrast": 2.7,
    "whiteContrast": 7.78,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  }
]
Semantic groups
[
  "dark slate blue palette",
  "generated palette",
  "blue palette",
  "yellow palette",
  "purple palette",
  "gray palette",
  "balanced palette",
  "earth tone palette",
  "light palette",
  "neutral palette",
  "cool palette",
  "warm palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "natural branding",
  "calm digital interfaces"
]
CSS variables
"--palette-dark-slate-blue-primary: #483D8B;\n--palette-dark-slate-blue-secondary: #808A3D;\n--palette-dark-slate-blue-surface: #3D598A;\n--palette-dark-slate-blue-background: #6E3D8A;\n--palette-dark-slate-blue-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "dark-slate-blue",
  "name": "Dark Slate Blue Palette",
  "type": "generated",
  "sourceColor": "dark-slate-blue",
  "description": "Generated palette built from Dark Slate Blue, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Dark Slate Blue Palette combines primary #483D8B, secondary #808A3D, surface #3D598A, background #6E3D8A, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a blue palette, yellow palette, purple 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": [
    "dark slate blue palette",
    "generated palette",
    "blue palette",
    "yellow palette",
    "purple palette",
    "gray palette",
    "balanced palette",
    "earth tone palette",
    "light palette",
    "neutral palette",
    "cool palette",
    "warm palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "natural branding",
    "calm digital interfaces"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#483D8B",
      "slug": "dark-slate-blue",
      "name": "Dark Slate Blue",
      "rgb": [
        72,
        61,
        139
      ],
      "hsl": [
        248,
        39,
        39
      ],
      "cmyk": [
        48,
        56,
        0,
        45
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0658,
      "contrast": {
        "black": 2.32,
        "white": 9.07
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/dark-slate-blue/"
    },
    {
      "role": "secondary",
      "hex": "#808A3D",
      "slug": null,
      "name": "#808A3D",
      "rgb": [
        128,
        138,
        61
      ],
      "hsl": [
        68,
        39,
        39
      ],
      "cmyk": [
        7,
        0,
        56,
        46
      ],
      "family": "yellow",
      "temperature": "warm",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.231,
      "contrast": {
        "black": 5.62,
        "white": 3.74
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#3D598A",
      "slug": null,
      "name": "#3D598A",
      "rgb": [
        61,
        89,
        138
      ],
      "hsl": [
        218,
        39,
        39
      ],
      "cmyk": [
        56,
        36,
        0,
        46
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0997,
      "contrast": {
        "black": 2.99,
        "white": 7.01
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF"
        ]
      },
      "url": null
    },
    {
      "role": "background",
      "hex": "#6E3D8A",
      "slug": null,
      "name": "#6E3D8A",
      "rgb": [
        110,
        61,
        138
      ],
      "hsl": [
        278,
        39,
        39
      ],
      "cmyk": [
        20,
        56,
        0,
        46
      ],
      "family": "purple",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0849,
      "contrast": {
        "black": 2.7,
        "white": 7.78
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "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": "#483D8B",
      "name": "Dark Slate Blue"
    },
    {
      "role": "secondary",
      "hex": "#808A3D",
      "name": "#808A3D"
    },
    {
      "role": "surface",
      "hex": "#3D598A",
      "name": "#3D598A"
    },
    {
      "role": "background",
      "hex": "#6E3D8A",
      "name": "#6E3D8A"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#483D8B",
      "name": "Dark Slate Blue",
      "blackContrast": 2.32,
      "whiteContrast": 9.07,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "secondary",
      "hex": "#808A3D",
      "name": "#808A3D",
      "blackContrast": 5.62,
      "whiteContrast": 3.74,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "surface",
      "hex": "#3D598A",
      "name": "#3D598A",
      "blackContrast": 2.99,
      "whiteContrast": 7.01,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF"
      ]
    },
    {
      "role": "background",
      "hex": "#6E3D8A",
      "name": "#6E3D8A",
      "blackContrast": 2.7,
      "whiteContrast": 7.78,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  ],
  "cssVariables": "--palette-dark-slate-blue-primary: #483D8B;\n--palette-dark-slate-blue-secondary: #808A3D;\n--palette-dark-slate-blue-surface: #3D598A;\n--palette-dark-slate-blue-background: #6E3D8A;\n--palette-dark-slate-blue-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/dark-slate-blue.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/dark-slate-blue.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/dark-slate-blue/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/dark-slate-blue.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.Dark Slate Blue Palette JSONOpen the machine-readable palette dataset.Dark Slate Blue colorOpen the source color reference for this generated palette.Blue colorsExplore blue colors related to this palette.Yellow colorsExplore yellow colors related to this palette.Purple colorsExplore purple colors related to this palette.Gray colorsExplore gray colors related to this palette.Balanced colorsExplore balanced colors used in palette systems.Earth Tone colorsExplore earth tone colors used in palette systems.Light colorsExplore light colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.