#90271B
Closest named color: Red Brown (#8B2E16). oklch(43.8% 0.143 30.2), rgb(144, 39, 27).
Aa
White text reads best on this color (8.42:1).
About this color
#90271B is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.143 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.016 away. White text reads best on it, at 8.42:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #90271B |
| RGB | rgb(144, 39, 27) |
| HSL | hsl(6, 68%, 34%) |
| OKLCH | oklch(43.8% 0.143 30.2) |
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 #90271B | 8.42:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #90271B | 2.49:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #90271B text on white | 8.42:1 | AAA | Lc 87.9 | Fine for body text |
| #90271B text on black | 2.49:1 | Fails | Lc -14.3 | 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
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F2ADA1
oklch(81% 0.084 30)
-
Step 400
400
#E87E6D
oklch(70.7% 0.134 30.3)
-
Step 500
500
#DD5846
oklch(63% 0.17 30.2)
-
Step 600
600
#C93727
oklch(55.6% 0.185 30.1)
-
Step 700
700
#AD2719
oklch(49.1% 0.172 30.2)
-
Step 800
800 (this color)
#90271B
oklch(43.8% 0.143 30.2)
-
Step 900
900
#71241A
oklch(37.7% 0.111 30.3)
-
Step 950
950
#431610
oklch(27% 0.071 30)
#90271B 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) | #463F19 | 0.151 |
| Deuteranopia (no green cones) | #605616 | 0.139 |
| Tritanopia (no blue cones) | #9F0025 | 0.045 |
| Achromatopsia (no color) | #4D4D4D | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90271B
#90271B
oklch(43.8% 0.143 30.2)
- #005D69
#005D69
oklch(43.8% 0.076 210)
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 #90271B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.016
- Brown Red #922B05 ΔE 0.019
- Brick Red #8F1402 ΔE 0.026
- Auburn #9B2226 ΔE 0.026
- Rust Brown #8B3103 ΔE 0.029
- Burnt Red #9F2305 ΔE 0.032
- Deep Red #9A0200 ΔE 0.034
- Blood Red #980002 ΔE 0.034
Use #90271B 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.