Firebrick #B22222
Firebrick is a medium-dark, vivid red with hex code #B22222 and RGB rgb(178, 34, 34).
Aa
White text reads best on this color (6.67:1).
About this color
#B22222 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.180 and its hue 27°. Its hue sits on the warm side of the wheel. It is the named color Firebrick. White text reads best on it, at 6.67:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Firebrick |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Colors that go with Firebrick
Matches found by rotating Firebrick around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Firebrick
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Firebrick, closest first.
Similar named colors
The eight named colors closest to Firebrick, with their ΔE distance.
- Rufous #AE2012 ΔE 0.015
- Rusty Red #AF2F0D ΔE 0.026
- Brown #A52A2A ΔE 0.026
- Rust Red #AA2704 ΔE 0.026
- Scarlet #BE0119 ΔE 0.026
- Lipstick Red #C0022F ΔE 0.036
- Rouge #AB1239 ΔE 0.040
- Brick #A03623 ΔE 0.041
More about Firebrick
How to make Firebrick
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 2 parts red
- 1 part brown
Recipe result: #B32F2E, a difference of ΔE 0.017 from Firebrick. That is very close: most people will not see the difference.
Codes for Firebrick in every format
| HEX | #B22222 |
| RGB | rgb(178, 34, 34) |
| HSL | hsl(0, 68%, 42%) |
| OKLCH | oklch(49.7% 0.18 26.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B22222 | 6.67:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #B22222 | 3.14:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #B22222 text on white | 6.67:1 | AA | Lc 81.3 | Fine for body text |
| #B22222 text on black | 3.14:1 | AA large text | Lc -20.5 | Dividers and decoration only |
Shades and tints of Firebrick
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F8CEC8
oklch(88.6% 0.048 27.6)
-
Step 300
300
#F4ABA3
oklch(80.9% 0.087 26.1)
-
Step 400
400
#EB7B71
oklch(70.7% 0.14 26.5)
-
Step 500
500
#E1534B
oklch(63.1% 0.179 26.7)
-
Step 600
600
#CC302D
oklch(55.6% 0.193 27)
-
Step 700
700 (this color)
#B22222
oklch(49.7% 0.18 26.8)
-
Step 800
800
#8F1E1D
oklch(42.7% 0.149 26.6)
-
Step 900
900
#73211D
oklch(37.8% 0.116 27)
-
Step 950
950
#441512
oklch(27.1% 0.073 26.7)
Firebrick with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #514820 | 0.194 |
| Deuteranopia (no green cones) | #74671B | 0.176 |
| Tritanopia (no blue cones) | #C40024 | 0.037 |
| Achromatopsia (no color) | #5C5C5C | 0.181 |
Use Firebrick in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.