#902133
Closest named color: Auburn (#9B2226). oklch(43.5% 0.146 17), rgb(144, 33, 51).
Aa
White text reads best on this color (8.56:1).
About this color
#902133 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.146 and its hue 17°. 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 8.56:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #902133 |
| RGB | rgb(144, 33, 51) |
| HSL | hsl(350, 63%, 35%) |
| OKLCH | oklch(43.5% 0.146 17) |
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 #902133 | 8.56:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #902133 | 2.45:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #902133 text on white | 8.56:1 | AAA | Lc 88.2 | Fine for body text |
| #902133 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
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCE
oklch(88.5% 0.048 16.5)
-
Step 300
300
#F3ABAD
oklch(81% 0.085 17.3)
-
Step 400
400
#E97A82
oklch(70.7% 0.137 16.7)
-
Step 500
500
#DE5362
oklch(63.1% 0.173 17.3)
-
Step 600
600
#CA3049
oklch(55.7% 0.189 17.3)
-
Step 700
700
#AE1F3B
oklch(49.1% 0.176 16.9)
-
Step 800
800 (this color)
#902133
oklch(43.5% 0.146 17)
-
Step 900
900
#72202B
oklch(37.7% 0.114 17)
-
Step 950
950
#431419
oklch(26.9% 0.073 17.1)
#902133 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) | #403D33 | 0.161 |
| Deuteranopia (no green cones) | #5C5530 | 0.149 |
| Tritanopia (no blue cones) | #9E0029 | 0.033 |
| Achromatopsia (no color) | #4C4C4C | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902133
#902133
oklch(43.5% 0.146 17)
- #005D5F
#005D5F
oklch(43.4% 0.074 197.3)
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 #902133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.030
- Red Wine #8C0034 ΔE 0.036
- Cranberry #9E003A ΔE 0.038
- Carmine #9D0216 ΔE 0.039
- Brick Red #8F1402 ΔE 0.044
- Blood Red #980002 ΔE 0.045
- Red Brown #8B2E16 ΔE 0.046
- Deep Red #9A0200 ΔE 0.046
Use #902133 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.