#9D1F37
Closest named color: Auburn (#9B2226). oklch(45.9% 0.16 16.4), rgb(157, 31, 55).
Aa
White text reads best on this color (7.82:1).
About this color
#9D1F37 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.160 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.023 away. White text reads best on it, at 7.82:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #9D1F37 |
| RGB | rgb(157, 31, 55) |
| HSL | hsl(349, 67%, 37%) |
| OKLCH | oklch(45.9% 0.16 16.4) |
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 #9D1F37 | 7.82:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #9D1F37 | 2.68:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #9D1F37 text on white | 7.82:1 | AAA | Lc 85.7 | Fine for body text |
| #9D1F37 text on black | 2.68:1 | Fails | Lc -16.3 | 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
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FACCCD
oklch(88.5% 0.052 16.7)
-
Step 300
300
#F7A8AC
oklch(80.9% 0.094 16)
-
Step 400
400
#EF7580
oklch(70.7% 0.15 16.1)
-
Step 500
500
#E54960
oklch(63% 0.191 16.2)
-
Step 600
600
#D11D47
oklch(55.6% 0.209 16.2)
-
Step 700
700
#B40638
oklch(49.1% 0.194 16.4)
-
Step 800
800 (this color)
#9D1F37
oklch(45.9% 0.16 16.4)
-
Step 900
900
#751A29
oklch(37.6% 0.124 16.6)
-
Step 950
950
#451118
oklch(26.9% 0.079 16.5)
#9D1F37 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) | #444137 | 0.178 |
| Deuteranopia (no green cones) | #645B33 | 0.162 |
| Tritanopia (no blue cones) | #AD002A | 0.035 |
| Achromatopsia (no color) | #525252 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9D1F37
#9D1F37
oklch(45.9% 0.16 16.4)
- #006566
#006566
oklch(45.9% 0.078 196)
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 #9D1F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.023
- Cranberry #9E003A ΔE 0.026
- Rouge #AB1239 ΔE 0.029
- Brown #A52A2A ΔE 0.034
- Carmine #9D0216 ΔE 0.037
- Berry #990F4B ΔE 0.042
- Purple Red #990147 ΔE 0.044
- Burnt Red #9F2305 ΔE 0.048
Use #9D1F37 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.