#B0132D
Closest named color: Rouge (#AB1239). oklch(48.6% 0.186 21), rgb(176, 19, 45).
Aa
White text reads best on this color (7.05:1).
About this color
#B0132D is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.186 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.019 away. White text reads best on it, at 7.05:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.186) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #B0132D |
| RGB | rgb(176, 19, 45) |
| HSL | hsl(350, 81%, 38%) |
| OKLCH | oklch(48.6% 0.186 21) |
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 #B0132D | 7.05:1 | AAA | Lc -87.5 | Fine for body text |
| Black text on #B0132D | 2.97:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #B0132D text on white | 7.05:1 | AAA | Lc 82.4 | Fine for body text |
| #B0132D 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
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCB
oklch(88.6% 0.05 21.2)
-
Step 300
300
#F5AAA8
oklch(80.9% 0.089 20.9)
-
Step 400
400
#ED7879
oklch(70.7% 0.145 20.9)
-
Step 500
500
#E34F57
oklch(63.2% 0.183 21)
-
Step 600
600
#CE283C
oklch(55.6% 0.199 21.1)
-
Step 700
700 (this color)
#B0132D
oklch(48.6% 0.186 21)
-
Step 800
800
#901827
oklch(42.6% 0.154 21)
-
Step 900
900
#741E24
oklch(37.7% 0.119 21.3)
-
Step 950
950
#441316
oklch(26.9% 0.075 20.3)
#B0132D 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) | #4A442C | 0.205 |
| Deuteranopia (no green cones) | #6F6427 | 0.187 |
| Tritanopia (no blue cones) | #C20020 | 0.037 |
| Achromatopsia (no color) | #595959 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B0132D
#B0132D
oklch(48.6% 0.186 21)
- #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 #B0132D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.019
- Firebrick #B22222 ΔE 0.023
- Brown #A52A2A ΔE 0.030
- Rufous #AE2012 ΔE 0.030
- Scarlet #BE0119 ΔE 0.032
- Lipstick Red #C0022F ΔE 0.032
- Rose Red #BE013C ΔE 0.034
- Raspberry #B00149 ΔE 0.042
Use #B0132D 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.