#90372F
Closest named color: Red Brown (#8B2E16). oklch(46% 0.122 28), rgb(144, 55, 47).
Aa
White text reads best on this color (7.57:1).
About this color
#90372F is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.122 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.030 away. White text reads best on it, at 7.57:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #90372F |
| RGB | rgb(144, 55, 47) |
| HSL | hsl(5, 51%, 37%) |
| OKLCH | oklch(46% 0.122 28) |
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 #90372F | 7.57:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #90372F | 2.77:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #90372F text on white | 7.57:1 | AAA | Lc 85.6 | Fine for body text |
| #90372F text on black | 2.77:1 | Fails | Lc -16.4 | 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 700.
-
Step 50
50
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EED1CD
oklch(88.4% 0.033 27.1)
-
Step 300
300
#E5B3AC
oklch(81% 0.059 27.6)
-
Step 400
400
#D58A7F
oklch(70.7% 0.094 28.7)
-
Step 500
500
#C86A5F
oklch(63% 0.121 27.9)
-
Step 600
600
#B35046
oklch(55.5% 0.131 27.9)
-
Step 700
700 (this color)
#90372F
oklch(46% 0.122 28)
-
Step 800
800
#7D352E
oklch(42.6% 0.102 27.7)
-
Step 900
900
#652F29
oklch(37.6% 0.079 27.9)
-
Step 950
950
#3B1C18
oklch(26.9% 0.05 28.5)
#90372F 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) | #4E482E | 0.129 |
| Deuteranopia (no green cones) | #655B2D | 0.117 |
| Tritanopia (no blue cones) | #9E2436 | 0.042 |
| Achromatopsia (no color) | #545454 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90372F
#90372F
oklch(46% 0.122 28)
- #00646F
#00646F
oklch(46% 0.079 207.9)
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 #90372F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.030
- Brick #A03623 ΔE 0.034
- Brown Red #922B05 ΔE 0.035
- Auburn #9B2226 ΔE 0.036
- Rust Brown #8B3103 ΔE 0.038
- Brown #A52A2A ΔE 0.043
- Burnt Red #9F2305 ΔE 0.044
- Russet #A13905 ΔE 0.048
Use #90372F 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.