#9B2431
Closest named color: Auburn (#9B2226). oklch(45.8% 0.154 20.2), rgb(155, 36, 49).
Aa
White text reads best on this color (7.80:1).
About this color
#9B2431 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.154 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.013 away. White text reads best on it, at 7.80:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #9B2431 |
| RGB | rgb(155, 36, 49) |
| HSL | hsl(353, 62%, 37%) |
| OKLCH | oklch(45.8% 0.154 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 #9B2431 | 7.80:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #9B2431 | 2.69:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #9B2431 text on white | 7.80:1 | AAA | Lc 85.8 | Fine for body text |
| #9B2431 text on black | 2.69:1 | Fails | Lc -16.2 | 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 800.
-
Step 50
50
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CDCB
oklch(88.6% 0.05 21.2)
-
Step 300
300
#F5A9A8
oklch(80.8% 0.09 20.1)
-
Step 400
400
#ED787A
oklch(70.7% 0.145 20.4)
-
Step 500
500
#E34E59
oklch(63.1% 0.184 20)
-
Step 600
600
#CE273E
oklch(55.5% 0.2 20.3)
-
Step 700
700
#B21530
oklch(49.1% 0.186 20.3)
-
Step 800
800 (this color)
#9B2431
oklch(45.8% 0.154 20.2)
-
Step 900
900
#741D25
oklch(37.6% 0.12 20.2)
-
Step 950
950
#441316
oklch(26.9% 0.075 20.3)
#9B2431 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) | #474231 | 0.168 |
| Deuteranopia (no green cones) | #645B2D | 0.155 |
| Tritanopia (no blue cones) | #AB002A | 0.036 |
| Achromatopsia (no color) | #525252 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9B2431
#9B2431
oklch(45.8% 0.154 20.2)
- #006469
#006469
oklch(45.8% 0.078 200.8)
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 #9B2431, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.013
- Brown #A52A2A ΔE 0.028
- Carmine #9D0216 ΔE 0.033
- Rouge #AB1239 ΔE 0.036
- Cranberry #9E003A ΔE 0.037
- Burnt Red #9F2305 ΔE 0.038
- Brick #A03623 ΔE 0.042
- Deep Red #9A0200 ΔE 0.043
Use #9B2431 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.