#90331D
Closest named color: Red Brown (#8B2E16). oklch(45.2% 0.131 34.6), rgb(144, 51, 29).
Aa
White text reads best on this color (7.84:1).
About this color
#90331D is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.131 and its hue 35°. 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 7.84:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #90331D |
| RGB | rgb(144, 51, 29) |
| HSL | hsl(11, 66%, 34%) |
| OKLCH | oklch(45.2% 0.131 34.6) |
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 #90331D | 7.84:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #90331D | 2.67:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #90331D text on white | 7.84:1 | AAA | Lc 86.4 | Fine for body text |
| #90331D text on black | 2.67:1 | Fails | Lc -15.7 | Dividers and decoration only |
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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F4D0C7
oklch(88.6% 0.043 34.3)
-
Step 300
300
#EDAFA0
oklch(80.8% 0.076 34)
-
Step 400
400
#E2836C
oklch(70.7% 0.122 34.5)
-
Step 500
500
#D76044
oklch(63.2% 0.156 34.6)
-
Step 600
600
#C24223
oklch(55.6% 0.17 34.6)
-
Step 700
700
#A73215
oklch(49% 0.158 34.5)
-
Step 800
800 (this color)
#90331D
oklch(45.2% 0.131 34.6)
-
Step 900
900
#6D2918
oklch(37.7% 0.101 35.2)
-
Step 950
950
#40190F
oklch(27% 0.064 35.5)
#90331D 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) | #4D451A | 0.134 |
| Deuteranopia (no green cones) | #64591A | 0.121 |
| Tritanopia (no blue cones) | #9F1B2F | 0.052 |
| Achromatopsia (no color) | #525252 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90331D
#90331D
oklch(45.2% 0.131 34.6)
- #006171
#006171
oklch(45.3% 0.08 214)
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 #90331D, 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 0.017
- Rust Brown #8B3103 ΔE 0.020
- Burnt Red #9F2305 ΔE 0.034
- Brick #A03623 ΔE 0.035
- Auburn #9B2226 ΔE 0.036
- Russet #A13905 ΔE 0.042
- Saddle Brown #8B4513 ΔE 0.043
Use #90331D 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.