#902F31
Closest named color: Auburn (#9B2226). oklch(45% 0.131 22.9), rgb(144, 47, 49).
Aa
White text reads best on this color (7.96:1).
About this color
#902F31 is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.131 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.026 away. White text reads best on it, at 7.96:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.63:1 |
| White text | 7.96:1 |
Values
| HEX | #902F31 |
| RGB | rgb(144, 47, 49) |
| HSL | hsl(359, 51%, 37%) |
| OKLCH | oklch(45% 0.131 22.9) |
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 #902F31 | 7.96:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #902F31 | 2.63:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #902F31 text on white | 7.96:1 | AAA | Lc 86.7 | Fine for body text |
| #902F31 text on black | 2.63:1 | Fails | Lc -15.4 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F4CFCC
oklch(88.5% 0.042 23.5)
-
Step 300
300
#EEAEAA
oklch(80.9% 0.076 22.9)
-
Step 400
400
#E3807C
oklch(70.7% 0.123 23.1)
-
Step 500
500
#D85C5B
oklch(63.1% 0.157 23.1)
-
Step 600
600
#C33D41
oklch(55.6% 0.17 23)
-
Step 700
700
#A82E33
oklch(49.1% 0.158 23.1)
-
Step 800
800 (this color)
#902F31
oklch(45% 0.131 22.9)
-
Step 900
900
#6E2627
oklch(37.7% 0.103 22.6)
-
Step 950
950
#411717
oklch(27% 0.066 22.5)
#902F31 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) | #494430 | 0.141 |
| Deuteranopia (no green cones) | #61582E | 0.129 |
| Tritanopia (no blue cones) | #9E1831 | 0.038 |
| Achromatopsia (no color) | #515151 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902F31
#902F31
oklch(45% 0.131 22.9)
- #006168
#006168
oklch(44.9% 0.076 203.4)
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 #902F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.026
- Red Brown #8B2E16 ΔE 0.031
- Brown Red #922B05 ΔE 0.037
- Brown #A52A2A ΔE 0.042
- Brick #A03623 ΔE 0.043
- Rust Brown #8B3103 ΔE 0.043
- Burnt Red #9F2305 ΔE 0.044
- Carmine #9D0216 ΔE 0.048
Use #902F31 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.