Colors Encyclopedia

Generated palette

Slate Blue Palette

Slate Blue Palette: #6A5ACD, #BECD5B, #5B85CD, #A35BCD. Check roles, contrast and CSS variables; open source-color links and JSON.

Slate Blue Palette assigns primary #6A5ACD, secondary #BECD5B, surface #5B85CD, background #A35BCD, accent #FFFFFF. The set spans Blue, Yellow, Purple, and Gray families with cool, warm, and neutral temperatures. Luminance runs from #6A5ACD at 0.1478 to #FFFFFF at 1; black gives higher contrast on 4 of 5 values.

All palettesSource colorAPI
5colors
Blue palettedominant group
6use cases

Palette Color Roles

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

Primary#6A5ACDSlate Blue
Secondary#BECD5B#BECD5B
Surface#5B85CD#5B85CD
Background#A35BCD#A35BCD
Accent#FFFFFFWhite

CSS Variables

--palette-slate-blue-primary: #6A5ACD;
--palette-slate-blue-secondary: #BECD5B;
--palette-slate-blue-surface: #5B85CD;
--palette-slate-blue-background: #A35BCD;
--palette-slate-blue-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#6A5ACD
Black 3.96:1 · White 5.31:1
Best #FFFFFF
Secondary#BECD5B
Black 12.07:1 · White 1.74:1
Best #000000
Surface#5B85CD
Black 5.68:1 · White 3.7:1
Best #000000
Background#A35BCD
Black 4.94:1 · White 4.25:1
Best #000000
Accent#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

Preview how the 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 Slate Blue Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.1478
Black text3.96:1AA Fail
White text5.31:1AA 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": "#6A5ACD",
    "name": "Slate Blue"
  },
  {
    "role": "secondary",
    "hex": "#BECD5B",
    "name": "#BECD5B"
  },
  {
    "role": "surface",
    "hex": "#5B85CD",
    "name": "#5B85CD"
  },
  {
    "role": "background",
    "hex": "#A35BCD",
    "name": "#A35BCD"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#6A5ACD",
    "name": "Slate Blue",
    "blackContrast": 3.96,
    "whiteContrast": 5.31,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "secondary",
    "hex": "#BECD5B",
    "name": "#BECD5B",
    "blackContrast": 12.07,
    "whiteContrast": 1.74,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A"
    ]
  },
  {
    "role": "surface",
    "hex": "#5B85CD",
    "name": "#5B85CD",
    "blackContrast": 5.68,
    "whiteContrast": 3.7,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "background",
    "hex": "#A35BCD",
    "name": "#A35BCD",
    "blackContrast": 4.94,
    "whiteContrast": 4.25,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  }
]
Semantic groups
[
  "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-slate-blue-primary: #6A5ACD;\n--palette-slate-blue-secondary: #BECD5B;\n--palette-slate-blue-surface: #5B85CD;\n--palette-slate-blue-background: #A35BCD;\n--palette-slate-blue-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "slate-blue",
  "name": "Slate Blue Palette",
  "type": "generated",
  "sourceColor": "slate-blue",
  "description": "Generated palette built from Slate Blue, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Slate Blue Palette combines primary #6A5ACD, secondary #BECD5B, surface #5B85CD, background #A35BCD, 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": [
    "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": "#6A5ACD",
      "slug": "slate-blue",
      "name": "Slate Blue",
      "rgb": [
        106,
        90,
        205
      ],
      "hsl": [
        248,
        53,
        58
      ],
      "cmyk": [
        48,
        56,
        0,
        20
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.1478,
      "contrast": {
        "black": 3.96,
        "white": 5.31
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/colors/slate-blue/"
    },
    {
      "role": "secondary",
      "hex": "#BECD5B",
      "slug": null,
      "name": "#BECD5B",
      "rgb": [
        190,
        205,
        91
      ],
      "hsl": [
        68,
        53,
        58
      ],
      "cmyk": [
        7,
        0,
        56,
        20
      ],
      "family": "yellow",
      "temperature": "warm",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.5537,
      "contrast": {
        "black": 12.07,
        "white": 1.74
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A"
        ]
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#5B85CD",
      "slug": null,
      "name": "#5B85CD",
      "rgb": [
        91,
        133,
        205
      ],
      "hsl": [
        218,
        53,
        58
      ],
      "cmyk": [
        56,
        35,
        0,
        20
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.2341,
      "contrast": {
        "black": 5.68,
        "white": 3.7
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "url": null
    },
    {
      "role": "background",
      "hex": "#A35BCD",
      "slug": null,
      "name": "#A35BCD",
      "rgb": [
        163,
        91,
        205
      ],
      "hsl": [
        278,
        53,
        58
      ],
      "cmyk": [
        20,
        56,
        0,
        20
      ],
      "family": "purple",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.1968,
      "contrast": {
        "black": 4.94,
        "white": 4.25
      },
      "wcag": {
        "AA": [
          "#000000"
        ],
        "AAA": []
      },
      "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": "#6A5ACD",
      "name": "Slate Blue"
    },
    {
      "role": "secondary",
      "hex": "#BECD5B",
      "name": "#BECD5B"
    },
    {
      "role": "surface",
      "hex": "#5B85CD",
      "name": "#5B85CD"
    },
    {
      "role": "background",
      "hex": "#A35BCD",
      "name": "#A35BCD"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#6A5ACD",
      "name": "Slate Blue",
      "blackContrast": 3.96,
      "whiteContrast": 5.31,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "secondary",
      "hex": "#BECD5B",
      "name": "#BECD5B",
      "blackContrast": 12.07,
      "whiteContrast": 1.74,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A"
      ]
    },
    {
      "role": "surface",
      "hex": "#5B85CD",
      "name": "#5B85CD",
      "blackContrast": 5.68,
      "whiteContrast": 3.7,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "background",
      "hex": "#A35BCD",
      "name": "#A35BCD",
      "blackContrast": 4.94,
      "whiteContrast": 4.25,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  ],
  "cssVariables": "--palette-slate-blue-primary: #6A5ACD;\n--palette-slate-blue-secondary: #BECD5B;\n--palette-slate-blue-surface: #5B85CD;\n--palette-slate-blue-background: #A35BCD;\n--palette-slate-blue-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/slate-blue.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/slate-blue.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/slate-blue/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/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.Slate Blue Palette JSONOpen the machine-readable palette dataset.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.