#B01429
Closest named color: Firebrick (#B22222). oklch(48.5% 0.185 22.5), rgb(176, 20, 41).
Aa
White text reads best on this color (7.05:1).
About this color
#B01429 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.185 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.019 away. White text reads best on it, at 7.05:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #B01429 |
| RGB | rgb(176, 20, 41) |
| HSL | hsl(352, 80%, 38%) |
| OKLCH | oklch(48.5% 0.185 22.5) |
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 #B01429 | 7.05:1 | AAA | Lc -87.5 | Fine for body text |
| Black text on #B01429 | 2.97:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #B01429 text on white | 7.05:1 | AAA | Lc 82.4 | Fine for body text |
| #B01429 text on black | 2.97:1 | Fails | Lc -19.5 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F5AAA6
oklch(80.9% 0.089 22.6)
-
Step 400
400
#ED7977
oklch(70.8% 0.144 22.4)
-
Step 500
500
#E34F53
oklch(63.1% 0.184 22.6)
-
Step 600
600
#CE2938
oklch(55.6% 0.199 22.5)
-
Step 700
700 (this color)
#B01429
oklch(48.5% 0.185 22.5)
-
Step 800
800
#901924
oklch(42.6% 0.153 22.6)
-
Step 900
900
#741E22
oklch(37.7% 0.119 22.6)
-
Step 950
950
#441314
oklch(26.9% 0.076 22.6)
#B01429 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) | #4A4428 | 0.205 |
| Deuteranopia (no green cones) | #6F6423 | 0.187 |
| Tritanopia (no blue cones) | #C2001F | 0.036 |
| Achromatopsia (no color) | #595959 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B01429
#B01429
oklch(48.5% 0.185 22.5)
- #006D73
#006D73
oklch(48.7% 0.083 201.5)
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 #B01429, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.019
- Rouge #AB1239 ΔE 0.024
- Rufous #AE2012 ΔE 0.025
- Brown #A52A2A ΔE 0.028
- Scarlet #BE0119 ΔE 0.030
- Lipstick Red #C0022F ΔE 0.033
- Rose Red #BE013C ΔE 0.037
- Rust Red #AA2704 ΔE 0.038
Use #B01429 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.