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Firebrick

Hex #B22222, rgb(178 34 34). A red CSS named color.

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Firebrick color codes

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HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Firebrick

Firebrick is a dark saturated red with the hex code #B22222. In RGB it is made of 178 red, 34 green and 34 blue; in HSL its hue is 0°, with 68% saturation and 42% lightness. Its perceptual lightness (OKLCH L) is 49.7%.

It is a CSS named color, so you can write "firebrick" anywhere CSS accepts a color. Against white it has a contrast ratio of 6.68:1 and against black 3.14:1, so white text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Firebrick mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Firebrick 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Firebrick

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Firebrick with white and black. The readable text color on Firebrick is white.

Firebrick textSmall text on white

On white6.68:1

  • AA pass
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc 81

Firebrick textSmall text on black

On black3.14:1

  • AA fail
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc -21

White text on Firebrick (#FFFFFF)

Test any pair in the contrast checker.

Color blindness preview

How Firebrick appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#514820
  • Deuteranopia#74671B
  • Tritanopia#C40024
  • Protanomaly#76451E
  • Deuteranomaly#845B1B
  • Tritanomaly#BA0723
  • Achromatopsia#5C5C5C

Colors similar to Firebrick

The closest named colors by perceptual difference (OKLab).

Use Firebrick in CSS and Tailwind

CSS
.firebrick {
  color: firebrick; /* #B22222 */
  background-color: rgb(178 34 34);
  border-color: oklch(49.7% 0.18 26.8);
}
Tailwind CSS
/* Tailwind CSS v4: bg-firebrick-500, text-firebrick-700... */
@theme {
  --color-firebrick-50: #FFF8F7;
  --color-firebrick-100: #FFE8E5;
  --color-firebrick-200: #FFCFC9;
  --color-firebrick-300: #FFA89E;
  --color-firebrick-400: #FC6B60;
  --color-firebrick-500: #F0423D;
  --color-firebrick-600: #D62D2C;
  --color-firebrick-700: #B22222;
  --color-firebrick-800: #8D1D1C;
  --color-firebrick-900: #721917;
  --color-firebrick-950: #320001;
}

<!-- or the exact color, no config -->
<div class="bg-[#B22222] text-[#FFFFFF]">…</div>