Colors Encyclopedia

Generated palette

Mustard Palette

Mustard Palette is a generated palette built from #FFDB58, #577BFF, #FF8657, #CFFF57. 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.

Mustard Palette combines primary #FFDB58, secondary #577BFF, surface #FF8657, background #CFFF57, accent #000000. According to Colors Encyclopedia, the palette works as a yellow palette, blue palette, orange 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
Yellow palettedominant group
6use 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#FFDB58Mustard
Secondary#577BFF#577BFF
Surface#FF8657#FF8657
Background#CFFF57#CFFF57
Accent#000000Black

CSS Variables

--palette-mustard-primary: #FFDB58;
--palette-mustard-secondary: #577BFF;
--palette-mustard-surface: #FF8657;
--palette-mustard-background: #CFFF57;
--palette-mustard-accent: #000000;

Accessibility Snapshot

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

Primary#FFDB58
Black 15.53:1 · White 1.35:1
Best #000000
Secondary#577BFF
Black 5.68:1 · White 3.7:1
Best #000000
Surface#FF8657
Black 8.8:1 · White 2.39:1
Best #000000
Background#CFFF57
Black 18.09:1 · White 1.16:1
Best #000000
Accent#000000
Black 1:1 · White 21:1
Best #FFFFFF

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 Mustard Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.7263
Black text15.53:1AA Pass
White text1.35:1AA 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": "#FFDB58",
    "name": "Mustard"
  },
  {
    "role": "secondary",
    "hex": "#577BFF",
    "name": "#577BFF"
  },
  {
    "role": "surface",
    "hex": "#FF8657",
    "name": "#FF8657"
  },
  {
    "role": "background",
    "hex": "#CFFF57",
    "name": "#CFFF57"
  },
  {
    "role": "accent",
    "hex": "#000000",
    "name": "Black"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#FFDB58",
    "name": "Mustard",
    "blackContrast": 15.53,
    "whiteContrast": 1.35,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  {
    "role": "secondary",
    "hex": "#577BFF",
    "name": "#577BFF",
    "blackContrast": 5.68,
    "whiteContrast": 3.7,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "surface",
    "hex": "#FF8657",
    "name": "#FF8657",
    "blackContrast": 8.8,
    "whiteContrast": 2.39,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A"
    ]
  },
  {
    "role": "background",
    "hex": "#CFFF57",
    "name": "#CFFF57",
    "blackContrast": 18.09,
    "whiteContrast": 1.16,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  {
    "role": "accent",
    "hex": "#000000",
    "name": "Black",
    "blackContrast": 1,
    "whiteContrast": 21,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  }
]
Semantic groups
[
  "mustard palette",
  "generated palette",
  "yellow palette",
  "blue palette",
  "orange palette",
  "green palette",
  "gray palette",
  "vibrant palette",
  "dark palette",
  "neutral palette",
  "warm palette",
  "cool palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "wellness and botanical palettes",
  "calm digital interfaces"
]
CSS variables
"--palette-mustard-primary: #FFDB58;\n--palette-mustard-secondary: #577BFF;\n--palette-mustard-surface: #FF8657;\n--palette-mustard-background: #CFFF57;\n--palette-mustard-accent: #000000;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "mustard",
  "name": "Mustard Palette",
  "type": "generated",
  "sourceColor": "mustard",
  "description": "Generated palette built from Mustard, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Mustard Palette combines primary #FFDB58, secondary #577BFF, surface #FF8657, background #CFFF57, accent #000000. According to Colors Encyclopedia, the palette works as a yellow palette, blue palette, orange 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": [
    "mustard palette",
    "generated palette",
    "yellow palette",
    "blue palette",
    "orange palette",
    "green palette",
    "gray palette",
    "vibrant palette",
    "dark palette",
    "neutral palette",
    "warm palette",
    "cool palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "wellness and botanical palettes",
    "calm digital interfaces"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#FFDB58",
      "slug": "mustard",
      "name": "Mustard",
      "rgb": [
        255,
        219,
        88
      ],
      "hsl": [
        47,
        100,
        67
      ],
      "cmyk": [
        0,
        14,
        65,
        0
      ],
      "family": "yellow",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.7263,
      "contrast": {
        "black": 15.53,
        "white": 1.35
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/mustard/"
    },
    {
      "role": "secondary",
      "hex": "#577BFF",
      "slug": null,
      "name": "#577BFF",
      "rgb": [
        87,
        123,
        255
      ],
      "hsl": [
        227,
        100,
        67
      ],
      "cmyk": [
        66,
        52,
        0,
        0
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.2341,
      "contrast": {
        "black": 5.68,
        "white": 3.7
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/hex/577bff/"
    },
    {
      "role": "surface",
      "hex": "#FF8657",
      "slug": null,
      "name": "#FF8657",
      "rgb": [
        255,
        134,
        87
      ],
      "hsl": [
        17,
        100,
        67
      ],
      "cmyk": [
        0,
        47,
        66,
        0
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.39,
      "contrast": {
        "black": 8.8,
        "white": 2.39
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/hex/ff8657/"
    },
    {
      "role": "background",
      "hex": "#CFFF57",
      "slug": null,
      "name": "#CFFF57",
      "rgb": [
        207,
        255,
        87
      ],
      "hsl": [
        77,
        100,
        67
      ],
      "cmyk": [
        19,
        0,
        66,
        0
      ],
      "family": "green",
      "temperature": "cool",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.8547,
      "contrast": {
        "black": 18.09,
        "white": 1.16
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/hex/cfff57/"
    },
    {
      "role": "accent",
      "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/"
    }
  ],
  "roles": [
    {
      "role": "primary",
      "hex": "#FFDB58",
      "name": "Mustard"
    },
    {
      "role": "secondary",
      "hex": "#577BFF",
      "name": "#577BFF"
    },
    {
      "role": "surface",
      "hex": "#FF8657",
      "name": "#FF8657"
    },
    {
      "role": "background",
      "hex": "#CFFF57",
      "name": "#CFFF57"
    },
    {
      "role": "accent",
      "hex": "#000000",
      "name": "Black"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#FFDB58",
      "name": "Mustard",
      "blackContrast": 15.53,
      "whiteContrast": 1.35,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    {
      "role": "secondary",
      "hex": "#577BFF",
      "name": "#577BFF",
      "blackContrast": 5.68,
      "whiteContrast": 3.7,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "surface",
      "hex": "#FF8657",
      "name": "#FF8657",
      "blackContrast": 8.8,
      "whiteContrast": 2.39,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A"
      ]
    },
    {
      "role": "background",
      "hex": "#CFFF57",
      "name": "#CFFF57",
      "blackContrast": 18.09,
      "whiteContrast": 1.16,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    {
      "role": "accent",
      "hex": "#000000",
      "name": "Black",
      "blackContrast": 1,
      "whiteContrast": 21,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    }
  ],
  "cssVariables": "--palette-mustard-primary: #FFDB58;\n--palette-mustard-secondary: #577BFF;\n--palette-mustard-surface: #FF8657;\n--palette-mustard-background: #CFFF57;\n--palette-mustard-accent: #000000;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/mustard.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/mustard.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/mustard/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/mustard.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.Mustard Palette JSONOpen the machine-readable palette dataset.Mustard colorOpen the source color reference for this generated palette.Yellow colorsExplore yellow colors related to this palette.Blue colorsExplore blue colors related to this palette.Orange colorsExplore orange colors related to this palette.Green colorsExplore green colors related to this palette.Vibrant colorsExplore vibrant colors used in palette systems.Dark colorsExplore dark colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.