Colors Encyclopedia

Named color

Firebrick

Firebrick color #B22222: RGB 178, 34, 34 and HSL 0°, 68%, 42%. Explore its warm red profile, contrast, CSS, palettes and harmonies.

#B22222 red warm balanced
HEX #B22222
RGB rgb(178, 34, 34)
HSL hsl(0 68% 42%)
CMYK cmyk(0, 81, 81, 30)
Luminance 0.1072
Contrast Black 3.14:1White 6.68:1

Use this color

Create with Firebrick

Open a professional color tool with #B22222 already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with Firebrick and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

CSS Utilities

--color-firebrick: #B22222;
.bg-firebrick { background-color: #B22222; }
.text-firebrick { color: #B22222; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Firebrick Color

Firebrick uses HEX #B22222, RGB 178, 34, 34, and HSL 0°, 68%, 42%. The dataset classifies it in the red family with warm temperature and balanced visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.1072; black contrast is 3.14:1 and white contrast is 6.68:1, making white the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Firebrick against black and white text.

Black text3.14:1AA Fail
White text6.68:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Firebrick Color Reference Infographic

Save a high-resolution infographic of Firebrick, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
Firebrick color reference infographic showing #B22222, RGB and HSL values, a coordinated palette, and black and white text contrast.
Firebrick color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#22B4B4#22B4B4#B4226B#B4226B#B46B22#B46B22#22B422#22B422#2222B4#2222B4
Open full Firebrick harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#DE5454#DE5454#671414#671414#CB0B0B#CB0B0B#9C3A3A#9C3A3A#D77E7E#D77E7ERed#FF0000

Pairings

White#FFFFFF#22B4B4#22B4B4#B4226B#B4226B#B46B22#B46B22Matte Black#1A1A1AWhite Smoke#F5F5F5

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.1072
Black text3.14:1AA Fail
White text6.68:1AA Pass
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{
  "hex": "#B22222",
  "rgb": [
    178,
    34,
    34
  ],
  "hsl": [
    0,
    68,
    42
  ],
  "cmyk": [
    0,
    81,
    81,
    30
  ],
  "luminance": 0.1072,
  "contrast": {
    "black": 3.14,
    "white": 6.68
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#22B4B4",
  "analogous": [
    "#B4226B",
    "#B46B22"
  ],
  "triadic": [
    "#22B422",
    "#2222B4"
  ],
  "tetradic": [
    "#6BB422",
    "#22B4B4",
    "#6B22B4"
  ],
  "splitComplementary": [
    "#22B46B",
    "#226BB4"
  ],
  "monochromatic": [
    "#DE5454",
    "#B22222",
    "#671414"
  ]
}
Variants
{
  "light": "#DE5454",
  "dark": "#671414",
  "saturated": "#CB0B0B",
  "desaturated": "#9C3A3A",
  "pastel": "#D77E7E",
  "neon": "#FF0000"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#22B4B4",
    "#B4226B",
    "#B46B22"
  ],
  "avoid": [
    "#9C3A3A",
    "#DE5454"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#DE5454",
    "#9C3A3A"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "tool-red",
    "brown",
    "ruby-red",
    "pompeian-red",
    "anodized-red"
  ],
  "generatedPalettes": [
    "firebrick"
  ],
  "generatedComparisons": [
    "brown-vs-firebrick",
    "firebrick-vs-tool-red",
    "pompeian-red-vs-firebrick"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/firebrick",
    "/wcag/firebrick",
    "/css/colors/firebrick",
    "/hex/b22222",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/firebrick"
    ],
    "related": [
      "/colors/tool-red",
      "/colors/brown",
      "/colors/ruby-red",
      "/colors/pompeian-red",
      "/colors/anodized-red",
      "/compare/brown-vs-firebrick",
      "/compare/firebrick-vs-tool-red",
      "/compare/pompeian-red-vs-firebrick",
      "/harmonies/firebrick",
      "/wcag/firebrick",
      "/css/colors/firebrick",
      "/hex/b22222",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "firebrick",
  "name": "Firebrick",
  "cssName": "firebrick",
  "hex": "#B22222",
  "family": "red",
  "temperature": "warm",
  "tone": [
    "balanced"
  ],
  "uses": [
    "web design",
    "CSS color systems",
    "UI prototyping"
  ],
  "psychology": {
    "associations": [
      "context dependent"
    ],
    "contexts": [
      "web interfaces",
      "design systems",
      "technical color references"
    ],
    "avoidIn": [
      "claims that require brand or cultural specificity"
    ]
  },
  "aliases": [
    "firebrick"
  ],
  "sourceType": "standard",
  "confidence": "high",
  "sourceUrl": "https://www.w3.org/TR/css-color-4/#named-colors",
  "origin": {
    "type": "css",
    "notes": "Standard CSS named color."
  },
  "reviewStatus": "auto",
  "editorialNotes": "Generated from CSS named color data and computed color-system properties.",
  "tags": [
    "red",
    "warm",
    "balanced",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 63,
  "rgb": [
    178,
    34,
    34
  ],
  "hsl": [
    0,
    68,
    42
  ],
  "cmyk": [
    0,
    81,
    81,
    30
  ],
  "luminance": 0.1072,
  "contrast": {
    "black": 3.14,
    "white": 6.68
  },
  "harmonies": {
    "complementary": "#22B4B4",
    "analogous": [
      "#B4226B",
      "#B46B22"
    ],
    "triadic": [
      "#22B422",
      "#2222B4"
    ],
    "tetradic": [
      "#6BB422",
      "#22B4B4",
      "#6B22B4"
    ],
    "splitComplementary": [
      "#22B46B",
      "#226BB4"
    ],
    "monochromatic": [
      "#DE5454",
      "#B22222",
      "#671414"
    ]
  },
  "variants": {
    "light": "#DE5454",
    "dark": "#671414",
    "saturated": "#CB0B0B",
    "desaturated": "#9C3A3A",
    "pastel": "#D77E7E",
    "neon": "#FF0000"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-firebrick: #B22222;",
    "utility": ".bg-firebrick { background-color: #B22222; }",
    "textUtility": ".text-firebrick { color: #B22222; }"
  },
  "nearestColors": [
    "tool-red",
    "brown",
    "ruby-red",
    "pompeian-red",
    "anodized-red"
  ],
  "generatedPalettes": [
    "firebrick"
  ],
  "generatedComparisons": [
    "brown-vs-firebrick",
    "firebrick-vs-tool-red",
    "pompeian-red-vs-firebrick"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/firebrick",
    "/wcag/firebrick",
    "/css/colors/firebrick",
    "/hex/b22222",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/firebrick"
    ],
    "related": [
      "/colors/tool-red",
      "/colors/brown",
      "/colors/ruby-red",
      "/colors/pompeian-red",
      "/colors/anodized-red",
      "/compare/brown-vs-firebrick",
      "/compare/firebrick-vs-tool-red",
      "/compare/pompeian-red-vs-firebrick",
      "/harmonies/firebrick",
      "/wcag/firebrick",
      "/css/colors/firebrick",
      "/hex/b22222",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#22B4B4",
      "#B4226B",
      "#B46B22"
    ],
    "avoid": [
      "#9C3A3A",
      "#DE5454"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#DE5454",
      "#9C3A3A"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Tool Red#B11226
Brown#A52A2A
Ruby Red#9B111E
Pompeian Red#A42A04
Anodized Red#B00020

Related Color Guides

Red color familyBrowse named red colors and compare nearby swatches.Warm colorsExplore colors with warm temperature behavior.Balanced colorsFind colors with balanced visual character.Firebrick accessibilityCheck contrast and WCAG text options for #B22222.Firebrick CSS utilitiesUse Firebrick in CSS variables and utility classes.#B22222 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Firebrick paletteOpen the generated palette based on Firebrick.Firebrick harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.