Colors Encyclopedia

Generated palette

Construction Orange Palette

Construction Orange Palette: #FF7F00, #007FFF, #FF0000, #FFFF00. Check roles, contrast and CSS variables; open source-color links and JSON.

Construction Orange Palette assigns primary #FF7F00, secondary #007FFF, surface #FF0000, background #FFFF00, accent #000000. The set spans Orange, Blue, Red, and Yellow families with warm, cool, and neutral temperatures. Luminance runs from #000000 at 0 to #FFFF00 at 0.9278; black gives higher contrast on 4 of 5 values.

All palettesSource colorAPI
5colors
Orange palettedominant group
5use cases

Palette Color Roles

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

Primary#FF7F00Construction Orange
Secondary#007FFF#007FFF
Surface#FF0000Red
Background#FFFF00Yellow
Accent#000000Black

CSS Variables

--palette-construction-orange-primary: #FF7F00;
--palette-construction-orange-secondary: #007FFF;
--palette-construction-orange-surface: #FF0000;
--palette-construction-orange-background: #FFFF00;
--palette-construction-orange-accent: #000000;

Accessibility Snapshot

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

Primary#FF7F00
Black 8.29:1 · White 2.53:1
Best #000000
Secondary#007FFF
Black 5.48:1 · White 3.83:1
Best #000000
Surface#FF0000
Black 5.25:1 · White 4:1
Best #000000
Background#FFFF00
Black 19.56:1 · White 1.07:1
Best #000000
Accent#000000
Black 1:1 · White 21:1
Best #FFFFFF

UI Components Preview

Preview how the Construction Orange 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 Construction Orange Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.3644
Black text8.29:1AA Pass
White text2.53:1AA 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": "#FF7F00",
    "name": "Construction Orange"
  },
  {
    "role": "secondary",
    "hex": "#007FFF",
    "name": "#007FFF"
  },
  {
    "role": "surface",
    "hex": "#FF0000",
    "name": "Red"
  },
  {
    "role": "background",
    "hex": "#FFFF00",
    "name": "Yellow"
  },
  {
    "role": "accent",
    "hex": "#000000",
    "name": "Black"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#FF7F00",
    "name": "Construction Orange",
    "blackContrast": 8.29,
    "whiteContrast": 2.53,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": [
      "#000000"
    ]
  },
  {
    "role": "secondary",
    "hex": "#007FFF",
    "name": "#007FFF",
    "blackContrast": 5.48,
    "whiteContrast": 3.83,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000",
      "#1A1A1A"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "surface",
    "hex": "#FF0000",
    "name": "Red",
    "blackContrast": 5.25,
    "whiteContrast": 4,
    "bestTextColor": "#000000",
    "aaTextOptions": [
      "#000000"
    ],
    "aaaTextOptions": []
  },
  {
    "role": "background",
    "hex": "#FFFF00",
    "name": "Yellow",
    "blackContrast": 19.56,
    "whiteContrast": 1.07,
    "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
[
  "construction orange palette",
  "generated palette",
  "orange palette",
  "blue palette",
  "red palette",
  "yellow 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",
  "calm digital interfaces"
]
CSS variables
"--palette-construction-orange-primary: #FF7F00;\n--palette-construction-orange-secondary: #007FFF;\n--palette-construction-orange-surface: #FF0000;\n--palette-construction-orange-background: #FFFF00;\n--palette-construction-orange-accent: #000000;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "construction-orange",
  "name": "Construction Orange Palette",
  "type": "generated",
  "sourceColor": "construction-orange",
  "description": "Generated palette built from Construction Orange, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Construction Orange Palette combines primary #FF7F00, secondary #007FFF, surface #FF0000, background #FFFF00, accent #000000. According to Colors Encyclopedia, the palette works as a orange palette, blue palette, red 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": [
    "construction orange palette",
    "generated palette",
    "orange palette",
    "blue palette",
    "red palette",
    "yellow palette",
    "gray palette",
    "vibrant palette",
    "dark palette",
    "neutral palette",
    "warm palette",
    "cool palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "calm digital interfaces"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#FF7F00",
      "slug": "construction-orange",
      "name": "Construction Orange",
      "rgb": [
        255,
        127,
        0
      ],
      "hsl": [
        30,
        100,
        50
      ],
      "cmyk": [
        0,
        50,
        100,
        0
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.3644,
      "contrast": {
        "black": 8.29,
        "white": 2.53
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": [
          "#000000"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/construction-orange/"
    },
    {
      "role": "secondary",
      "hex": "#007FFF",
      "slug": null,
      "name": "#007FFF",
      "rgb": [
        0,
        127,
        255
      ],
      "hsl": [
        210,
        100,
        50
      ],
      "cmyk": [
        100,
        50,
        0,
        0
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.224,
      "contrast": {
        "black": 5.48,
        "white": 3.83
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#FF0000",
      "slug": "red",
      "name": "Red",
      "rgb": [
        255,
        0,
        0
      ],
      "hsl": [
        0,
        100,
        50
      ],
      "cmyk": [
        0,
        100,
        100,
        0
      ],
      "family": "red",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.2126,
      "contrast": {
        "black": 5.25,
        "white": 4
      },
      "wcag": {
        "AA": [
          "#000000"
        ],
        "AAA": []
      },
      "url": "https://www.colorsencyclopedia.com/colors/red/"
    },
    {
      "role": "background",
      "hex": "#FFFF00",
      "slug": "yellow",
      "name": "Yellow",
      "rgb": [
        255,
        255,
        0
      ],
      "hsl": [
        60,
        100,
        50
      ],
      "cmyk": [
        0,
        0,
        100,
        0
      ],
      "family": "yellow",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.9278,
      "contrast": {
        "black": 19.56,
        "white": 1.07
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/yellow/"
    },
    {
      "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": "#FF7F00",
      "name": "Construction Orange"
    },
    {
      "role": "secondary",
      "hex": "#007FFF",
      "name": "#007FFF"
    },
    {
      "role": "surface",
      "hex": "#FF0000",
      "name": "Red"
    },
    {
      "role": "background",
      "hex": "#FFFF00",
      "name": "Yellow"
    },
    {
      "role": "accent",
      "hex": "#000000",
      "name": "Black"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#FF7F00",
      "name": "Construction Orange",
      "blackContrast": 8.29,
      "whiteContrast": 2.53,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": [
        "#000000"
      ]
    },
    {
      "role": "secondary",
      "hex": "#007FFF",
      "name": "#007FFF",
      "blackContrast": 5.48,
      "whiteContrast": 3.83,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000",
        "#1A1A1A"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "surface",
      "hex": "#FF0000",
      "name": "Red",
      "blackContrast": 5.25,
      "whiteContrast": 4,
      "bestTextColor": "#000000",
      "aaTextOptions": [
        "#000000"
      ],
      "aaaTextOptions": []
    },
    {
      "role": "background",
      "hex": "#FFFF00",
      "name": "Yellow",
      "blackContrast": 19.56,
      "whiteContrast": 1.07,
      "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-construction-orange-primary: #FF7F00;\n--palette-construction-orange-secondary: #007FFF;\n--palette-construction-orange-surface: #FF0000;\n--palette-construction-orange-background: #FFFF00;\n--palette-construction-orange-accent: #000000;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/construction-orange.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/construction-orange.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/construction-orange/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/construction-orange.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.Construction Orange Palette JSONOpen the machine-readable palette dataset.Construction Orange colorOpen the source color reference for this generated palette.Orange colorsExplore orange colors related to this palette.Blue colorsExplore blue colors related to this palette.Red colorsExplore red colors related to this palette.Yellow colorsExplore yellow 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.