Colors Encyclopedia

Generated palette

Slate Navy Palette

Slate Navy Palette: #30475E, #5E4731, #315E5E, #31315E. Check roles, contrast and CSS variables; open source-color links and JSON.

Slate Navy Palette assigns primary #30475E, secondary #5E4731, surface #315E5E, background #31315E, accent #FFFFFF. The set spans Blue, Orange, Cyan, and Gray families with cool, warm, and neutral temperatures. Luminance runs from #31315E at 0.0366 to #FFFFFF at 1; black gives higher contrast on 1 of 5 values.

All palettesSource colorAPI
5colors
Blue palettedominant group
6use cases

Palette Color Roles

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

Primary#30475ESlate Navy
Secondary#5E4731#5E4731
Surface#315E5E#315E5E
Background#31315E#31315E
Accent#FFFFFFWhite

CSS Variables

--palette-slate-navy-primary: #30475E;
--palette-slate-navy-secondary: #5E4731;
--palette-slate-navy-surface: #315E5E;
--palette-slate-navy-background: #31315E;
--palette-slate-navy-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#30475E
Black 2.19:1 · White 9.6:1
Best #FFFFFF
Secondary#5E4731
Black 2.42:1 · White 8.67:1
Best #FFFFFF
Surface#315E5E
Black 2.89:1 · White 7.26:1
Best #FFFFFF
Background#31315E
Black 1.73:1 · White 12.12:1
Best #FFFFFF
Accent#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

Preview how the Slate Navy 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 Navy Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.0594
Black text2.19:1AA Fail
White text9.6:1AA 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": "#30475E",
    "name": "Slate Navy"
  },
  {
    "role": "secondary",
    "hex": "#5E4731",
    "name": "#5E4731"
  },
  {
    "role": "surface",
    "hex": "#315E5E",
    "name": "#315E5E"
  },
  {
    "role": "background",
    "hex": "#31315E",
    "name": "#31315E"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#30475E",
    "name": "Slate Navy",
    "blackContrast": 2.19,
    "whiteContrast": 9.6,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "secondary",
    "hex": "#5E4731",
    "name": "#5E4731",
    "blackContrast": 2.42,
    "whiteContrast": 8.67,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "surface",
    "hex": "#315E5E",
    "name": "#315E5E",
    "blackContrast": 2.89,
    "whiteContrast": 7.26,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF"
    ]
  },
  {
    "role": "background",
    "hex": "#31315E",
    "name": "#31315E",
    "blackContrast": 1.73,
    "whiteContrast": 12.12,
    "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
[
  "slate navy palette",
  "generated palette",
  "blue palette",
  "orange palette",
  "cyan 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-navy-primary: #30475E;\n--palette-slate-navy-secondary: #5E4731;\n--palette-slate-navy-surface: #315E5E;\n--palette-slate-navy-background: #31315E;\n--palette-slate-navy-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "slate-navy",
  "name": "Slate Navy Palette",
  "type": "generated",
  "sourceColor": "slate-navy",
  "description": "Generated palette built from Slate Navy, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Slate Navy Palette combines primary #30475E, secondary #5E4731, surface #315E5E, background #31315E, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a blue palette, orange palette, cyan 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 navy palette",
    "generated palette",
    "blue palette",
    "orange palette",
    "cyan 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": "#30475E",
      "slug": "slate-navy",
      "name": "Slate Navy",
      "rgb": [
        48,
        71,
        94
      ],
      "hsl": [
        210,
        32,
        28
      ],
      "cmyk": [
        49,
        24,
        0,
        63
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0594,
      "contrast": {
        "black": 2.19,
        "white": 9.6
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/slate-navy/"
    },
    {
      "role": "secondary",
      "hex": "#5E4731",
      "slug": null,
      "name": "#5E4731",
      "rgb": [
        94,
        71,
        49
      ],
      "hsl": [
        29,
        31,
        28
      ],
      "cmyk": [
        0,
        24,
        48,
        63
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.0711,
      "contrast": {
        "black": 2.42,
        "white": 8.67
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#315E5E",
      "slug": null,
      "name": "#315E5E",
      "rgb": [
        49,
        94,
        94
      ],
      "hsl": [
        180,
        31,
        28
      ],
      "cmyk": [
        48,
        0,
        0,
        63
      ],
      "family": "cyan",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0947,
      "contrast": {
        "black": 2.89,
        "white": 7.26
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF"
        ]
      },
      "url": null
    },
    {
      "role": "background",
      "hex": "#31315E",
      "slug": null,
      "name": "#31315E",
      "rgb": [
        49,
        49,
        94
      ],
      "hsl": [
        240,
        31,
        28
      ],
      "cmyk": [
        48,
        48,
        0,
        63
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.0366,
      "contrast": {
        "black": 1.73,
        "white": 12.12
      },
      "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": "#30475E",
      "name": "Slate Navy"
    },
    {
      "role": "secondary",
      "hex": "#5E4731",
      "name": "#5E4731"
    },
    {
      "role": "surface",
      "hex": "#315E5E",
      "name": "#315E5E"
    },
    {
      "role": "background",
      "hex": "#31315E",
      "name": "#31315E"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#30475E",
      "name": "Slate Navy",
      "blackContrast": 2.19,
      "whiteContrast": 9.6,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "secondary",
      "hex": "#5E4731",
      "name": "#5E4731",
      "blackContrast": 2.42,
      "whiteContrast": 8.67,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "surface",
      "hex": "#315E5E",
      "name": "#315E5E",
      "blackContrast": 2.89,
      "whiteContrast": 7.26,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF"
      ]
    },
    {
      "role": "background",
      "hex": "#31315E",
      "name": "#31315E",
      "blackContrast": 1.73,
      "whiteContrast": 12.12,
      "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-slate-navy-primary: #30475E;\n--palette-slate-navy-secondary: #5E4731;\n--palette-slate-navy-surface: #315E5E;\n--palette-slate-navy-background: #31315E;\n--palette-slate-navy-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/slate-navy.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/slate-navy.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/slate-navy/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/slate-navy.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 Navy Palette JSONOpen the machine-readable palette dataset.Slate Navy colorOpen the source color reference for this generated palette.Blue colorsExplore blue colors related to this palette.Orange colorsExplore orange colors related to this palette.Cyan colorsExplore cyan 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.