#902637
Closest named color: Auburn (#9B2226). oklch(44.1% 0.141 16.2), rgb(144, 38, 55).
Aa
White text reads best on this color (8.33:1).
About this color
#902637 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.141 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.030 away. White text reads best on it, at 8.33:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.51:1 |
| White text | 8.33:1 |
Values
| HEX | #902637 |
| RGB | rgb(144, 38, 55) |
| HSL | hsl(350, 58%, 36%) |
| OKLCH | oklch(44.1% 0.141 16.2) |
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 #902637 | 8.33:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #902637 | 2.51:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #902637 text on white | 8.33:1 | AAA | Lc 87.7 | Fine for body text |
| #902637 text on black | 2.51:1 | Fails | Lc -14.5 | Not readable |
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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F6CECF
oklch(88.6% 0.045 16.3)
-
Step 300
300
#F1ABAE
oklch(80.8% 0.083 16.2)
-
Step 400
400
#E67C84
oklch(70.6% 0.131 16.2)
-
Step 500
500
#DC5566
oklch(63.1% 0.169 15.9)
-
Step 600
600
#C7344D
oklch(55.6% 0.183 16.2)
-
Step 700
700
#AC243E
oklch(49.2% 0.171 16.2)
-
Step 800
800 (this color)
#902637
oklch(44.1% 0.141 16.2)
-
Step 900
900
#70222D
oklch(37.7% 0.11 16)
-
Step 950
950
#42151A
oklch(26.9% 0.07 16.4)
#902637 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) | #424037 | 0.156 |
| Deuteranopia (no green cones) | #5D5634 | 0.143 |
| Tritanopia (no blue cones) | #9E062D | 0.035 |
| Achromatopsia (no color) | #4E4E4E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902637
#902637
oklch(44.1% 0.141 16.2)
- #005F60
#005F60
oklch(44% 0.075 196)
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 #902637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.030
- Cranberry #9E003A ΔE 0.040
- Red Wine #8C0034 ΔE 0.042
- Carmine #9D0216 ΔE 0.044
- Red Brown #8B2E16 ΔE 0.046
- Berry #990F4B ΔE 0.047
- Purple Red #990147 ΔE 0.049
- Brick Red #8F1402 ΔE 0.049
Use #902637 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.