#90240B
Closest named color: Brown Red (#922B05). oklch(43.3% 0.148 33.7), rgb(144, 36, 11).
Aa
White text reads best on this color (8.59:1).
About this color
#90240B is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.148 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Brown Red (#922B05), ΔE 0.014 away. White text reads best on it, at 8.59:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Brown Red (#922B05) |
| Black text | 2.44:1 |
| White text | 8.59:1 |
Values
| HEX | #90240B |
| RGB | rgb(144, 36, 11) |
| HSL | hsl(11, 86%, 30%) |
| OKLCH | oklch(43.3% 0.148 33.7) |
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 #90240B | 8.59:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #90240B | 2.44:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #90240B text on white | 8.59:1 | AAA | Lc 88.3 | Fine for body text |
| #90240B text on black | 2.44:1 | Fails | Lc -13.9 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F7CEC5
oklch(88.4% 0.048 32.5)
-
Step 300
300
#F3AD9C
oklch(81% 0.086 34.1)
-
Step 400
400
#E97E66
oklch(70.7% 0.137 33.7)
-
Step 500
500
#DF573A
oklch(63.1% 0.176 33.7)
-
Step 600
600
#CB3511
oklch(55.7% 0.192 33.8)
-
Step 700
700
#AF2500
oklch(49.1% 0.178 33.7)
-
Step 800
800 (this color)
#90240B
oklch(43.3% 0.148 33.7)
-
Step 900
900
#722312
oklch(37.7% 0.115 33.7)
-
Step 950
950
#43160C
oklch(27% 0.072 34.1)
#90240B 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) | #453D05 | 0.156 |
| Deuteranopia (no green cones) | #605502 | 0.141 |
| Tritanopia (no blue cones) | #9F0020 | 0.046 |
| Achromatopsia (no color) | #4C4C4C | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90240B
#90240B
oklch(43.3% 0.148 33.7)
- #005B6A
#005B6A
oklch(43.3% 0.076 213.9)
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 #90240B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown Red #922B05 ΔE 0.014
- Red Brown #8B2E16 ΔE 0.017
- Brick Red #8F1402 ΔE 0.020
- Rust Brown #8B3103 ΔE 0.025
- Deep Red #9A0200 ΔE 0.031
- Blood Red #980002 ΔE 0.031
- Burnt Red #9F2305 ΔE 0.031
- Auburn #9B2226 ΔE 0.033
Use #90240B 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.