#B01630
Closest named color: Rouge (#AB1239). oklch(48.7% 0.184 20.2), rgb(176, 22, 48).
Aa
White text reads best on this color (6.99:1).
About this color
#B01630 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.184 and its hue 20°. 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 6.99:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #B01630 |
| RGB | rgb(176, 22, 48) |
| HSL | hsl(350, 78%, 39%) |
| OKLCH | oklch(48.7% 0.184 20.2) |
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 #B01630 | 6.99:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #B01630 | 3.00:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #B01630 text on white | 6.99:1 | AA | Lc 82.3 | Fine for body text |
| #B01630 text on black | 3.00:1 | AA large text | Lc -19.6 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E3
oklch(93.7% 0.025 20.6)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F5AAA9
oklch(81% 0.089 20)
-
Step 400
400
#EC797B
oklch(70.8% 0.142 20.3)
-
Step 500
500
#E24F59
oklch(63% 0.182 20.2)
-
Step 600
600
#CD293F
oklch(55.5% 0.198 20.1)
-
Step 700
700 (this color)
#B01630
oklch(48.7% 0.184 20.2)
-
Step 800
800
#901929
oklch(42.7% 0.153 20.3)
-
Step 900
900
#741E26
oklch(37.8% 0.119 20)
-
Step 950
950
#441316
oklch(26.9% 0.075 20.3)
#B01630 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) | #4A4530 | 0.204 |
| Deuteranopia (no green cones) | #6F642B | 0.185 |
| Tritanopia (no blue cones) | #C20023 | 0.037 |
| Achromatopsia (no color) | #595959 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B01630
#B01630
oklch(48.7% 0.184 20.2)
- #006D72
#006D72
oklch(48.6% 0.083 200.4)
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 #B01630, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Firebrick #B22222 ΔE 0.023
- Brown #A52A2A ΔE 0.030
- Lipstick Red #C0022F ΔE 0.032
- Rufous #AE2012 ΔE 0.032
- Rose Red #BE013C ΔE 0.033
- Scarlet #BE0119 ΔE 0.033
- Raspberry #B00149 ΔE 0.040
Use #B01630 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.