Generated palette

Jet Palette

Jet Palette: #343434, #333333, #FFFFFF, #616161. Check roles, contrast and CSS variables; open source-color links and JSON.

Jet Palette assigns primary #343434, secondary #333333, surface #FFFFFF, background #616161. The set spans Gray families with neutral temperature. Luminance runs from #333333 at 0.0331 to #FFFFFF at 1; black gives higher contrast on 1 of 4 values.

All palettes Source color API

4colors

Gray palettedominant group

5use cases

Palette Color Roles

Jet Palette maps 4 colors to practical UI roles for interfaces, brand systems, and CSS tokens.

Primary#343434Jet

Secondary#333333#333333

Surface#FFFFFFWhite

Background#616161#616161

CSS Variables

--palette-jet-primary: #343434;
--palette-jet-secondary: #333333;
--palette-jet-surface: #FFFFFF;
--palette-jet-background: #616161;

Accessibility Snapshot

Compare all 4 Jet Palette values against black and white text, with the stronger standard foreground identified for each role.

Primary#343434
Black 1.69:1 · White 12.46:1
Best #FFFFFF

Secondary#333333
Black 1.66:1 · White 12.64:1
Best #FFFFFF

Surface#FFFFFF
Black 21:1 · White 1:1
Best #000000

Background#616161
Black 3.39:1 · White 6.19:1
Best #FFFFFF

UI Components Preview

Preview how the Jet 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.

Luminance0.0343

Black text1.69:1AA Fail

White text12.46:1AA 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

Structured sections

Roles

[
  {
    "role": "primary",
    "hex": "#343434",
    "name": "Jet"
  },
  {
    "role": "secondary",
    "hex": "#333333",
    "name": "#333333"
  },
  {
    "role": "surface",
    "hex": "#FFFFFF",
    "name": "White"
  },
  {
    "role": "background",
    "hex": "#616161",
    "name": "#616161"
  }
]

Accessibility

[
  {
    "role": "primary",
    "hex": "#343434",
    "name": "Jet",
    "blackContrast": 1.69,
    "whiteContrast": 12.46,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "secondary",
    "hex": "#333333",
    "name": "#333333",
    "blackContrast": 1.66,
    "whiteContrast": 12.64,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "surface",
    "hex": "#FFFFFF",
    "name": "White",
    "blackContrast": 21,
    "whiteContrast": 1,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "aaaTextOptions": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  {
    "role": "background",
    "hex": "#616161",
    "name": "#616161",
    "blackContrast": 3.39,
    "whiteContrast": 6.19,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": []
  }
]

Semantic groups

[
  "jet palette",
  "generated palette",
  "gray palette",
  "dark palette",
  "light palette",
  "neutral palette",
  "muted palette"
]

Use cases

[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "quiet UI themes"
]

CSS variables

"--palette-jet-primary: #343434;\n--palette-jet-secondary: #333333;\n--palette-jet-surface: #FFFFFF;\n--palette-jet-background: #616161;"

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "jet",
  "name": "Jet Palette",
  "type": "generated",
  "sourceColor": "jet",
  "description": "Generated palette built from Jet, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Jet Palette combines primary #343434, secondary #333333, surface #FFFFFF, background #616161. According to Colors Encyclopedia, the palette works as a gray palette, dark palette, light 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": [
    "jet palette",
    "generated palette",
    "gray palette",
    "dark palette",
    "light palette",
    "neutral palette",
    "muted palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "quiet UI themes"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#343434",
      "slug": "jet",
      "name": "Jet",
      "rgb": [
        52,
        52,
        52
      ],
      "hsl": [
        0,
        0,
        20
      ],
      "cmyk": [
        0,
        0,
        0,
        80
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "dark"
      ],
      "luminance": 0.0343,
      "contrast": {
        "black": 1.69,
        "white": 12.46
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/jet/"
    },
    {
      "role": "secondary",
      "hex": "#333333",
      "slug": null,
      "name": "#333333",
      "rgb": [
        51,
        51,
        51
      ],
      "hsl": [
        0,
        0,
        20
      ],
      "cmyk": [
        0,
        0,
        0,
        80
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "dark"
      ],
      "luminance": 0.0331,
      "contrast": {
        "black": 1.66,
        "white": 12.64
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "role": "surface",
      "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/"
    },
    {
      "role": "background",
      "hex": "#616161",
      "slug": null,
      "name": "#616161",
      "rgb": [
        97,
        97,
        97
      ],
      "hsl": [
        0,
        0,
        38
      ],
      "cmyk": [
        0,
        0,
        0,
        62
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.1195,
      "contrast": {
        "black": 3.39,
        "white": 6.19
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "url": null
    }
  ],
  "roles": [
    {
      "role": "primary",
      "hex": "#343434",
      "name": "Jet"
    },
    {
      "role": "secondary",
      "hex": "#333333",
      "name": "#333333"
    },
    {
      "role": "surface",
      "hex": "#FFFFFF",
      "name": "White"
    },
    {
      "role": "background",
      "hex": "#616161",
      "name": "#616161"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#343434",
      "name": "Jet",
      "blackContrast": 1.69,
      "whiteContrast": 12.46,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "secondary",
      "hex": "#333333",
      "name": "#333333",
      "blackContrast": 1.66,
      "whiteContrast": 12.64,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "surface",
      "hex": "#FFFFFF",
      "name": "White",
      "blackContrast": 21,
      "whiteContrast": 1,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "aaaTextOptions": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    {
      "role": "background",
      "hex": "#616161",
      "name": "#616161",
      "blackContrast": 3.39,
      "whiteContrast": 6.19,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": []
    }
  ],
  "cssVariables": "--palette-jet-primary: #343434;\n--palette-jet-secondary: #333333;\n--palette-jet-surface: #FFFFFF;\n--palette-jet-background: #616161;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/jet.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/jet.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/jet/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/jet.json"
}

Jet Palette

Palette Color Roles

CSS Variables

Accessibility Snapshot

UI Components Preview

Machine-Readable Jet Palette Data (JSON)

Related Palette Guides