Colors Encyclopedia

Generated palette

Iron Palette

Iron Palette: #48494B, #4B4A48, #484B4B, #49484B. Check roles, contrast and CSS variables; open source-color links and JSON.

Iron Palette assigns primary #48494B, secondary #4B4A48, surface #484B4B, background #49484B, accent #FFFFFF. The set spans Gray families with neutral temperature. Luminance runs from #49484B at 0.0656 to #FFFFFF at 1; black gives higher contrast on 1 of 5 values.

All palettesSource colorAPI
5colors
Gray palettedominant group
5use cases

Palette Color Roles

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

Primary#48494BIron
Secondary#4B4A48#4B4A48
Surface#484B4B#484B4B
Background#49484B#49484B
Accent#FFFFFFWhite

CSS Variables

--palette-iron-primary: #48494B;
--palette-iron-secondary: #4B4A48;
--palette-iron-surface: #484B4B;
--palette-iron-background: #49484B;
--palette-iron-accent: #FFFFFF;

Accessibility Snapshot

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

Primary#48494B
Black 2.33:1 · White 9.01:1
Best #FFFFFF
Secondary#4B4A48
Black 2.37:1 · White 8.85:1
Best #FFFFFF
Surface#484B4B
Black 2.38:1 · White 8.81:1
Best #FFFFFF
Background#49484B
Black 2.31:1 · White 9.08:1
Best #FFFFFF
Accent#FFFFFF
Black 21:1 · White 1:1
Best #000000

UI Components Preview

Preview how the Iron 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 Iron Palette Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.0665
Black text2.33:1AA Fail
White text9.01:1AA 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": "#48494B",
    "name": "Iron"
  },
  {
    "role": "secondary",
    "hex": "#4B4A48",
    "name": "#4B4A48"
  },
  {
    "role": "surface",
    "hex": "#484B4B",
    "name": "#484B4B"
  },
  {
    "role": "background",
    "hex": "#49484B",
    "name": "#49484B"
  },
  {
    "role": "accent",
    "hex": "#FFFFFF",
    "name": "White"
  }
]
Accessibility
[
  {
    "role": "primary",
    "hex": "#48494B",
    "name": "Iron",
    "blackContrast": 2.33,
    "whiteContrast": 9.01,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "secondary",
    "hex": "#4B4A48",
    "name": "#4B4A48",
    "blackContrast": 2.37,
    "whiteContrast": 8.85,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "surface",
    "hex": "#484B4B",
    "name": "#484B4B",
    "blackContrast": 2.38,
    "whiteContrast": 8.81,
    "bestTextColor": "#FFFFFF",
    "aaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "aaaTextOptions": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  {
    "role": "background",
    "hex": "#49484B",
    "name": "#49484B",
    "blackContrast": 2.31,
    "whiteContrast": 9.08,
    "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
[
  "iron palette",
  "generated palette",
  "gray palette",
  "muted palette",
  "light palette",
  "neutral palette"
]
Use cases
[
  "design system tokens",
  "CSS variables",
  "palette reference",
  "AI color ingestion",
  "quiet UI themes"
]
CSS variables
"--palette-iron-primary: #48494B;\n--palette-iron-secondary: #4B4A48;\n--palette-iron-surface: #484B4B;\n--palette-iron-background: #49484B;\n--palette-iron-accent: #FFFFFF;"
Full JSON dataset 
{
  "datasetVersion": "1.0.0",
  "slug": "iron",
  "name": "Iron Palette",
  "type": "generated",
  "sourceColor": "iron",
  "description": "Generated palette built from Iron, its harmonies, a high-contrast pairing, and a light variant.",
  "narrative": "Iron Palette combines primary #48494B, secondary #4B4A48, surface #484B4B, background #49484B, accent #FFFFFF. According to Colors Encyclopedia, the palette works as a gray palette, muted 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": [
    "iron palette",
    "generated palette",
    "gray palette",
    "muted palette",
    "light palette",
    "neutral palette"
  ],
  "useCases": [
    "design system tokens",
    "CSS variables",
    "palette reference",
    "AI color ingestion",
    "quiet UI themes"
  ],
  "colors": [
    {
      "role": "primary",
      "hex": "#48494B",
      "slug": "iron",
      "name": "Iron",
      "rgb": [
        72,
        73,
        75
      ],
      "hsl": [
        220,
        2,
        29
      ],
      "cmyk": [
        4,
        3,
        0,
        71
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.0665,
      "contrast": {
        "black": 2.33,
        "white": 9.01
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": "https://www.colorsencyclopedia.com/colors/iron/"
    },
    {
      "role": "secondary",
      "hex": "#4B4A48",
      "slug": null,
      "name": "#4B4A48",
      "rgb": [
        75,
        74,
        72
      ],
      "hsl": [
        40,
        2,
        29
      ],
      "cmyk": [
        0,
        1,
        4,
        71
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.0686,
      "contrast": {
        "black": 2.37,
        "white": 8.85
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "role": "surface",
      "hex": "#484B4B",
      "slug": null,
      "name": "#484B4B",
      "rgb": [
        72,
        75,
        75
      ],
      "hsl": [
        180,
        2,
        29
      ],
      "cmyk": [
        4,
        0,
        0,
        71
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.0692,
      "contrast": {
        "black": 2.38,
        "white": 8.81
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "url": null
    },
    {
      "role": "background",
      "hex": "#49484B",
      "slug": null,
      "name": "#49484B",
      "rgb": [
        73,
        72,
        75
      ],
      "hsl": [
        260,
        2,
        29
      ],
      "cmyk": [
        3,
        4,
        0,
        71
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.0656,
      "contrast": {
        "black": 2.31,
        "white": 9.08
      },
      "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": "#48494B",
      "name": "Iron"
    },
    {
      "role": "secondary",
      "hex": "#4B4A48",
      "name": "#4B4A48"
    },
    {
      "role": "surface",
      "hex": "#484B4B",
      "name": "#484B4B"
    },
    {
      "role": "background",
      "hex": "#49484B",
      "name": "#49484B"
    },
    {
      "role": "accent",
      "hex": "#FFFFFF",
      "name": "White"
    }
  ],
  "accessibility": [
    {
      "role": "primary",
      "hex": "#48494B",
      "name": "Iron",
      "blackContrast": 2.33,
      "whiteContrast": 9.01,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "secondary",
      "hex": "#4B4A48",
      "name": "#4B4A48",
      "blackContrast": 2.37,
      "whiteContrast": 8.85,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "surface",
      "hex": "#484B4B",
      "name": "#484B4B",
      "blackContrast": 2.38,
      "whiteContrast": 8.81,
      "bestTextColor": "#FFFFFF",
      "aaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "aaaTextOptions": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    {
      "role": "background",
      "hex": "#49484B",
      "name": "#49484B",
      "blackContrast": 2.31,
      "whiteContrast": 9.08,
      "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-iron-primary: #48494B;\n--palette-iron-secondary: #4B4A48;\n--palette-iron-surface: #484B4B;\n--palette-iron-background: #49484B;\n--palette-iron-accent: #FFFFFF;",
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/palettes/iron.json",
    "https://www.colorsencyclopedia.com/api/palettes.json",
    "https://www.colorsencyclopedia.com/api/colors/iron.json"
  ],
  "url": "https://www.colorsencyclopedia.com/palettes/iron/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/palettes/iron.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.Iron Palette JSONOpen the machine-readable palette dataset.Iron colorOpen the source color reference for this generated palette.Gray colorsExplore gray colors related to this palette.Muted colorsExplore muted colors used in palette systems.Light colorsExplore light colors used in palette systems.Neutral colorsExplore neutral colors used in palette systems.