Colors Encyclopedia

Generated palette

Fern Frond Palette

Fern Frond Palette: #657220, #2E2173, #735821, #3C7321. Check roles, contrast and CSS variables; open source-color links and JSON.

Fern Frond Palette assigns primary #657220, secondary #2E2173, surface #735821, background #3C7321, accent #FFFFFF. The set spans Green, Blue, Orange, and Gray families with cool, warm, and neutral temperatures. Luminance runs from #2E2173 at 0.0291 to #FFFFFF at 1; black gives higher contrast on 1 of 5 values.

All palettesSource colorAPI
5colors
Green palettedominant group
7use cases

Palette Color Roles

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

Primary#657220Fern Frond
Secondary#2E2173#2E2173
Surface#735821#735821
Background#3C7321#3C7321
Accent#FFFFFFWhite

CSS Variables

--palette-fern-frond-primary: #657220;
--palette-fern-frond-secondary: #2E2173;
--palette-fern-frond-surface: #735821;
--palette-fern-frond-background: #3C7321;
--palette-fern-frond-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#657220
Black 3.98:1 · White 5.27:1
Best #FFFFFF
Secondary#2E2173
Black 1.58:1 · White 13.27:1
Best #FFFFFF
Surface#735821
Black 3.15:1 · White 6.68:1
Best #FFFFFF
Background#3C7321
Black 3.67:1 · White 5.73:1
Best #FFFFFF
Accent#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

Preview how the Fern Frond 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 Fern Frond Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.1491
Black text3.98:1AA Fail
White text5.27:1AA 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": "#657220",
    "name": "Fern Frond"
  },
  {
    "role": "secondary",
    "hex": "#2E2173",
    "name": "#2E2173"
  },
  {
    "role": "surface",
    "hex": "#735821",
    "name": "#735821"
  },
  {
    "role": "background",
    "hex": "#3C7321",
    "name": "#3C7321"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#657220",
    "name": "Fern Frond",
    "blackContrast": 3.98,
    "whiteContrast": 5.27,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "secondary",
    "hex": "#2E2173",
    "name": "#2E2173",
    "blackContrast": 1.58,
    "whiteContrast": 13.27,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "surface",
    "hex": "#735821",
    "name": "#735821",
    "blackContrast": 3.15,
    "whiteContrast": 6.68,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "background",
    "hex": "#3C7321",
    "name": "#3C7321",
    "blackContrast": 3.67,
    "whiteContrast": 5.73,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  }
]
Semantic groups
[
  "fern frond palette",
  "generated palette",
  "green palette",
  "blue palette",
  "orange palette",
  "gray palette",
  "earth tone palette",
  "jewel tone palette",
  "light palette",
  "neutral palette",
  "cool palette",
  "warm palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "natural branding",
  "wellness and botanical palettes",
  "calm digital interfaces"
]
CSS variables
"--palette-fern-frond-primary: #657220;\n--palette-fern-frond-secondary: #2E2173;\n--palette-fern-frond-surface: #735821;\n--palette-fern-frond-background: #3C7321;\n--palette-fern-frond-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "fern-frond",
  "name": "Fern Frond Palette",
  "type": "generated",
  "sourceColor": "fern-frond",
  "description": "Generated palette built from Fern Frond, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Fern Frond Palette combines primary #657220, secondary #2E2173, surface #735821, background #3C7321, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a green 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": [
    "fern frond palette",
    "generated palette",
    "green palette",
    "blue palette",
    "orange palette",
    "gray palette",
    "earth tone palette",
    "jewel tone palette",
    "light palette",
    "neutral palette",
    "cool palette",
    "warm palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "natural branding",
    "wellness and botanical palettes",
    "calm digital interfaces"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#657220",
      "slug": "fern-frond",
      "name": "Fern Frond",
      "rgb": [
        101,
        114,
        32
      ],
      "hsl": [
        70,
        56,
        29
      ],
      "cmyk": [
        11,
        0,
        72,
        55
      ],
      "family": "green",
      "temperature": "cool",
      "tone": [
        "earth-tone",
        "jewel-tone"
      ],
      "luminance": 0.1491,
      "contrast": {
        "black": 3.98,
        "white": 5.27
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/colors/fern-frond/"
    },
    {
      "role": "secondary",
      "hex": "#2E2173",
      "slug": null,
      "name": "#2E2173",
      "rgb": [
        46,
        33,
        115
      ],
      "hsl": [
        250,
        55,
        29
      ],
      "cmyk": [
        60,
        71,
        0,
        55
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "jewel-tone"
      ],
      "luminance": 0.0291,
      "contrast": {
        "black": 1.58,
        "white": 13.27
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#735821",
      "slug": null,
      "name": "#735821",
      "rgb": [
        115,
        88,
        33
      ],
      "hsl": [
        40,
        55,
        29
      ],
      "cmyk": [
        0,
        23,
        71,
        55
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.1073,
      "contrast": {
        "black": 3.15,
        "white": 6.68
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "url": null
    },
    {
      "role": "background",
      "hex": "#3C7321",
      "slug": null,
      "name": "#3C7321",
      "rgb": [
        60,
        115,
        33
      ],
      "hsl": [
        100,
        55,
        29
      ],
      "cmyk": [
        48,
        0,
        71,
        55
      ],
      "family": "green",
      "temperature": "cool",
      "tone": [
        "earth-tone",
        "jewel-tone"
      ],
      "luminance": 0.1333,
      "contrast": {
        "black": 3.67,
        "white": 5.73
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "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": "#657220",
      "name": "Fern Frond"
    },
    {
      "role": "secondary",
      "hex": "#2E2173",
      "name": "#2E2173"
    },
    {
      "role": "surface",
      "hex": "#735821",
      "name": "#735821"
    },
    {
      "role": "background",
      "hex": "#3C7321",
      "name": "#3C7321"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#657220",
      "name": "Fern Frond",
      "blackContrast": 3.98,
      "whiteContrast": 5.27,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "secondary",
      "hex": "#2E2173",
      "name": "#2E2173",
      "blackContrast": 1.58,
      "whiteContrast": 13.27,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "surface",
      "hex": "#735821",
      "name": "#735821",
      "blackContrast": 3.15,
      "whiteContrast": 6.68,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "background",
      "hex": "#3C7321",
      "name": "#3C7321",
      "blackContrast": 3.67,
      "whiteContrast": 5.73,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    }
  ],
  "cssVariables": "--palette-fern-frond-primary: #657220;\n--palette-fern-frond-secondary: #2E2173;\n--palette-fern-frond-surface: #735821;\n--palette-fern-frond-background: #3C7321;\n--palette-fern-frond-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/fern-frond.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/fern-frond.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/fern-frond/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/fern-frond.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.Fern Frond Palette JSONOpen the machine-readable palette dataset.Fern Frond colorOpen the source color reference for this generated palette.Green colorsExplore green colors related to this palette.Blue colorsExplore blue colors related to this palette.Orange colorsExplore orange colors related to this palette.Gray colorsExplore gray colors related to this palette.Earth Tone colorsExplore earth tone colors used in palette systems.Jewel Tone colorsExplore jewel tone colors used in palette systems.Light colorsExplore light colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.