Colors Encyclopedia

Generated palette

Ultramarine Palette

Ultramarine Palette is a generated palette built from #120A8F, #868F0A, #0A448F, #550A8F. 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.

Ultramarine Palette combines primary #120A8F, secondary #868F0A, surface #0A448F, background #550A8F, 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.

All palettesSource colorAPI
5colors
Blue 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#120A8FUltramarine
Secondary#868F0A#868F0A
Surface#0A448F#0A448F
Background#550A8F#550A8F
Accent#FFFFFFWhite

CSS Variables

--palette-ultramarine-primary: #120A8F;
--palette-ultramarine-secondary: #868F0A;
--palette-ultramarine-surface: #0A448F;
--palette-ultramarine-background: #550A8F;
--palette-ultramarine-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#120A8F
Black 1.47:1 · White 14.32:1
Best #FFFFFF
Secondary#868F0A
Black 5.95:1 · White 3.53:1
Best #000000
Surface#0A448F
Black 2.24:1 · White 9.39:1
Best #FFFFFF
Background#550A8F
Black 1.83:1 · White 11.5:1
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 Ultramarine Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.0233
Black text1.47:1AA Fail
White text14.32:1AA 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": "#120A8F",
    "name": "Ultramarine"
  },
  {
    "role": "secondary",
    "hex": "#868F0A",
    "name": "#868F0A"
  },
  {
    "role": "surface",
    "hex": "#0A448F",
    "name": "#0A448F"
  },
  {
    "role": "background",
    "hex": "#550A8F",
    "name": "#550A8F"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#120A8F",
    "name": "Ultramarine",
    "blackContrast": 1.47,
    "whiteContrast": 14.32,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "secondary",
    "hex": "#868F0A",
    "name": "#868F0A",
    "blackContrast": 5.95,
    "whiteContrast": 3.53,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "surface",
    "hex": "#0A448F",
    "name": "#0A448F",
    "blackContrast": 2.24,
    "whiteContrast": 9.39,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "background",
    "hex": "#550A8F",
    "name": "#550A8F",
    "blackContrast": 1.83,
    "whiteContrast": 11.5,
    "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
[
  "ultramarine palette",
  "generated palette",
  "blue palette",
  "yellow palette",
  "purple palette",
  "gray palette",
  "jewel tone palette",
  "balanced palette",
  "light palette",
  "neutral palette",
  "cool palette",
  "warm palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "calm digital interfaces"
]
CSS variables
"--palette-ultramarine-primary: #120A8F;\n--palette-ultramarine-secondary: #868F0A;\n--palette-ultramarine-surface: #0A448F;\n--palette-ultramarine-background: #550A8F;\n--palette-ultramarine-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "ultramarine",
  "name": "Ultramarine Palette",
  "type": "generated",
  "sourceColor": "ultramarine",
  "description": "Generated palette built from Ultramarine, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Ultramarine Palette combines primary #120A8F, secondary #868F0A, surface #0A448F, background #550A8F, 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": [
    "ultramarine palette",
    "generated palette",
    "blue palette",
    "yellow palette",
    "purple palette",
    "gray palette",
    "jewel tone palette",
    "balanced palette",
    "light palette",
    "neutral palette",
    "cool palette",
    "warm palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "calm digital interfaces"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#120A8F",
      "slug": "ultramarine",
      "name": "Ultramarine",
      "rgb": [
        18,
        10,
        143
      ],
      "hsl": [
        244,
        87,
        30
      ],
      "cmyk": [
        87,
        93,
        0,
        44
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "jewel-tone"
      ],
      "luminance": 0.0233,
      "contrast": {
        "black": 1.47,
        "white": 14.32
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/ultramarine/"
    },
    {
      "role": "secondary",
      "hex": "#868F0A",
      "slug": null,
      "name": "#868F0A",
      "rgb": [
        134,
        143,
        10
      ],
      "hsl": [
        64,
        87,
        30
      ],
      "cmyk": [
        6,
        0,
        93,
        44
      ],
      "family": "yellow",
      "temperature": "warm",
      "tone": [
        "balanced"
      ],
      "luminance": 0.2474,
      "contrast": {
        "black": 5.95,
        "white": 3.53
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/hex/868f0a/"
    },
    {
      "role": "surface",
      "hex": "#0A448F",
      "slug": null,
      "name": "#0A448F",
      "rgb": [
        10,
        68,
        143
      ],
      "hsl": [
        214,
        87,
        30
      ],
      "cmyk": [
        93,
        52,
        0,
        44
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "jewel-tone"
      ],
      "luminance": 0.0618,
      "contrast": {
        "black": 2.24,
        "white": 9.39
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/hex/0a448f/"
    },
    {
      "role": "background",
      "hex": "#550A8F",
      "slug": null,
      "name": "#550A8F",
      "rgb": [
        85,
        10,
        143
      ],
      "hsl": [
        274,
        87,
        30
      ],
      "cmyk": [
        41,
        93,
        0,
        44
      ],
      "family": "purple",
      "temperature": "cool",
      "tone": [
        "jewel-tone"
      ],
      "luminance": 0.0413,
      "contrast": {
        "black": 1.83,
        "white": 11.5
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/hex/550a8f/"
    },
    {
      "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": "#120A8F",
      "name": "Ultramarine"
    },
    {
      "role": "secondary",
      "hex": "#868F0A",
      "name": "#868F0A"
    },
    {
      "role": "surface",
      "hex": "#0A448F",
      "name": "#0A448F"
    },
    {
      "role": "background",
      "hex": "#550A8F",
      "name": "#550A8F"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#120A8F",
      "name": "Ultramarine",
      "blackContrast": 1.47,
      "whiteContrast": 14.32,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "secondary",
      "hex": "#868F0A",
      "name": "#868F0A",
      "blackContrast": 5.95,
      "whiteContrast": 3.53,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "surface",
      "hex": "#0A448F",
      "name": "#0A448F",
      "blackContrast": 2.24,
      "whiteContrast": 9.39,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "background",
      "hex": "#550A8F",
      "name": "#550A8F",
      "blackContrast": 1.83,
      "whiteContrast": 11.5,
      "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-ultramarine-primary: #120A8F;\n--palette-ultramarine-secondary: #868F0A;\n--palette-ultramarine-surface: #0A448F;\n--palette-ultramarine-background: #550A8F;\n--palette-ultramarine-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/ultramarine.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/ultramarine.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/ultramarine/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/ultramarine.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.Ultramarine Palette JSONOpen the machine-readable palette dataset.Ultramarine 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.Jewel Tone colorsExplore jewel tone colors used in palette systems.Balanced colorsExplore balanced colors used in palette systems.Light colorsExplore light colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.