#902523
Closest named color: Auburn (#9B2226). oklch(43.6% 0.143 26.3), rgb(144, 37, 35).
Aa
White text reads best on this color (8.48:1).
About this color
#902523 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.143 and its hue 26°. 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 8.48:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #902523 |
| RGB | rgb(144, 37, 35) |
| HSL | hsl(1, 61%, 35%) |
| OKLCH | oklch(43.6% 0.143 26.3) |
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 #902523 | 8.48:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #902523 | 2.47:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #902523 text on white | 8.48:1 | AAA | Lc 88.0 | Fine for body text |
| #902523 text on black | 2.47:1 | Fails | Lc -14.1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F7CEC9
oklch(88.5% 0.047 26.2)
-
Step 300
300
#F2ACA4
oklch(80.9% 0.084 26.4)
-
Step 400
400
#E87D73
oklch(70.7% 0.134 26.5)
-
Step 500
500
#DE564F
oklch(63.1% 0.172 26.1)
-
Step 600
600
#C93533
oklch(55.6% 0.185 26.2)
-
Step 700
700
#AD2525
oklch(49% 0.172 26.4)
-
Step 800
800 (this color)
#902523
oklch(43.6% 0.143 26.3)
-
Step 900
900
#712320
oklch(37.7% 0.111 26.1)
-
Step 950
950
#431613
oklch(27.1% 0.071 26.6)
#902523 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) | #443E22 | 0.154 |
| Deuteranopia (no green cones) | #5F551F | 0.140 |
| Tritanopia (no blue cones) | #9F0026 | 0.040 |
| Achromatopsia (no color) | #4D4D4D | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902523
#902523
oklch(43.6% 0.143 26.3)
- #005D66
#005D66
oklch(43.7% 0.075 206.3)
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 #902523, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.023
- Red Brown #8B2E16 ΔE 0.024
- Brick Red #8F1402 ΔE 0.028
- Brown Red #922B05 ΔE 0.028
- Blood Red #980002 ΔE 0.034
- Carmine #9D0216 ΔE 0.034
- Deep Red #9A0200 ΔE 0.034
- Burnt Red #9F2305 ΔE 0.037
Use #902523 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.