#902137
Closest named color: Auburn (#9B2226). oklch(43.6% 0.146 14.8), rgb(144, 33, 55).
Aa
White text reads best on this color (8.54:1).
About this color
#902137 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.146 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.033 away. White text reads best on it, at 8.54:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #902137 |
| RGB | rgb(144, 33, 55) |
| HSL | hsl(348, 63%, 35%) |
| OKLCH | oklch(43.6% 0.146 14.8) |
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 #902137 | 8.54:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #902137 | 2.45:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #902137 text on white | 8.54:1 | AAA | Lc 88.1 | Fine for body text |
| #902137 text on black | 2.45:1 | Fails | Lc -14.0 | 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
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F7CDCF
oklch(88.5% 0.048 14.9)
-
Step 300
300
#F2AAAF
oklch(80.8% 0.085 14.5)
-
Step 400
400
#E87A85
oklch(70.6% 0.136 14.9)
-
Step 500
500
#DE5267
oklch(63% 0.175 14.8)
-
Step 600
600
#C92F4F
oklch(55.5% 0.189 14.6)
-
Step 700
700
#AE1F40
oklch(49.2% 0.177 14.7)
-
Step 800
800 (this color)
#902137
oklch(43.6% 0.146 14.8)
-
Step 900
900
#71202E
oklch(37.6% 0.113 14.5)
-
Step 950
950
#43141B
oklch(27% 0.073 14.5)
#902137 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) | #403E37 | 0.161 |
| Deuteranopia (no green cones) | #5C5534 | 0.149 |
| Tritanopia (no blue cones) | #9E002A | 0.034 |
| Achromatopsia (no color) | #4C4C4C | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902137
#902137
oklch(43.6% 0.146 14.8)
- #005E5E
#005E5E
oklch(43.6% 0.074 194.8)
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 #902137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.033
- Red Wine #8C0034 ΔE 0.034
- Cranberry #9E003A ΔE 0.035
- Berry #990F4B ΔE 0.042
- Purple Red #990147 ΔE 0.043
- Carmine #9D0216 ΔE 0.043
- Mulberry #920A4E ΔE 0.049
- Brick Red #8F1402 ΔE 0.050
Use #902137 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.