#B21141
Closest named color: Rouge (#AB1239). oklch(49.2% 0.188 13.2), rgb(178, 17, 65).
Aa
White text reads best on this color (6.88:1).
About this color
#B21141 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.188 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.018 away. White text reads best on it, at 6.88:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.04:1 |
| White text | 6.88:1 |
Values
| HEX | #B21141 |
| RGB | rgb(178, 17, 65) |
| HSL | hsl(342, 83%, 38%) |
| OKLCH | oklch(49.2% 0.188 13.2) |
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 #B21141 | 6.88:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #B21141 | 3.04:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #B21141 text on white | 6.88:1 | AA | Lc 81.8 | Fine for body text |
| #B21141 text on black | 3.04:1 | AA large text | Lc -20.1 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FBE3E5
oklch(93.6% 0.026 11.9)
-
Step 200
200
#F9CCCF
oklch(88.5% 0.051 13.7)
-
Step 300
300
#F5A8B0
oklch(80.8% 0.091 12.5)
-
Step 400
400
#EC7686
oklch(70.6% 0.146 13.1)
-
Step 500
500
#E34C68
oklch(63.2% 0.187 13.4)
-
Step 600
600
#CE2350
oklch(55.6% 0.203 13.2)
-
Step 700
700 (this color)
#B21141
oklch(49.2% 0.188 13.2)
-
Step 800
800
#901535
oklch(42.7% 0.156 13.4)
-
Step 900
900
#741C2E
oklch(37.7% 0.121 13.6)
-
Step 950
950
#44121B
oklch(26.9% 0.077 13.3)
#B21141 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) | #474641 | 0.212 |
| Deuteranopia (no green cones) | #6E653D | 0.192 |
| Tritanopia (no blue cones) | #C40029 | 0.046 |
| Achromatopsia (no color) | #5A5A5A | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B21141
#B21141
oklch(49.2% 0.188 13.2)
- #00706E
#00706E
oklch(49.3% 0.084 192.6)
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 #B21141, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Raspberry #B00149 ΔE 0.018
- Rose Red #BE013C ΔE 0.025
- Lipstick Red #C0022F ΔE 0.036
- Firebrick #B22222 ΔE 0.045
- Cranberry #9E003A ΔE 0.047
- Scarlet #BE0119 ΔE 0.048
- Brown #A52A2A ΔE 0.049
Use #B21141 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.