#B91F29
Closest named color: Firebrick (#B22222). oklch(50.9% 0.187 24.5), rgb(185, 31, 41).
Aa
White text reads best on this color (6.38:1).
About this color
#B91F29 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.187 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.016 away. White text reads best on it, at 6.38:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.29:1 |
| White text | 6.38:1 |
Values
| HEX | #B91F29 |
| RGB | rgb(185, 31, 41) |
| HSL | hsl(356, 71%, 42%) |
| OKLCH | oklch(50.9% 0.187 24.5) |
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 #B91F29 | 6.38:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #B91F29 | 3.29:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #B91F29 text on white | 6.38:1 | AA | Lc 79.9 | Fine for body text |
| #B91F29 text on black | 3.29:1 | AA large text | Lc -21.9 | Dividers and decoration only |
Tints and shades
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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F6AAA4
oklch(80.9% 0.091 24.3)
-
Step 400
400
#ED7972
oklch(70.7% 0.144 24.9)
-
Step 500
500
#E44F4E
oklch(63.2% 0.185 24.5)
-
Step 600
600
#CF2831
oklch(55.6% 0.201 24.5)
-
Step 700
700 (this color)
#B91F29
oklch(50.9% 0.187 24.5)
-
Step 800
800
#91181F
oklch(42.7% 0.155 24.5)
-
Step 900
900
#751E1F
oklch(37.8% 0.121 24.5)
-
Step 950
950
#451313
oklch(27% 0.077 23.8)
#B91F29 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) | #524A28 | 0.205 |
| Deuteranopia (no green cones) | #776B22 | 0.188 |
| Tritanopia (no blue cones) | #CC0025 | 0.037 |
| Achromatopsia (no color) | #5F5F5F | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B91F29
#B91F29
oklch(50.9% 0.187 24.5)
- #00747D
#00747D
oklch(51% 0.087 204.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B91F29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.016
- Scarlet #BE0119 ΔE 0.018
- Lipstick Red #C0022F ΔE 0.022
- Rufous #AE2012 ΔE 0.030
- Rose Red #BE013C ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.037
- Brown #A52A2A ΔE 0.040
- Rust Red #AA2704 ΔE 0.041
Use #B91F29 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.