#90333B
Closest named color: Auburn (#9B2226). oklch(45.7% 0.126 18.6), rgb(144, 51, 59).
Aa
White text reads best on this color (7.71:1).
About this color
#90333B is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.126 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.034 away. White text reads best on it, at 7.71:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #90333B |
| RGB | rgb(144, 51, 59) |
| HSL | hsl(355, 48%, 38%) |
| OKLCH | oklch(45.7% 0.126 18.6) |
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 #90333B | 7.71:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #90333B | 2.72:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #90333B text on white | 7.71:1 | AAA | Lc 86.0 | Fine for body text |
| #90333B text on black | 2.72:1 | Fails | Lc -16.0 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F3CFCF
oklch(88.5% 0.041 17.9)
-
Step 300
300
#ECAEAE
oklch(80.8% 0.073 18.8)
-
Step 400
400
#E08184
oklch(70.7% 0.117 18.5)
-
Step 500
500
#D55E65
oklch(63.2% 0.15 18.9)
-
Step 600
600
#C0404D
oklch(55.6% 0.163 18.4)
-
Step 700
700
#A5313E
oklch(49.1% 0.151 18.5)
-
Step 800
800 (this color)
#90333B
oklch(45.7% 0.126 18.6)
-
Step 900
900
#6C272D
oklch(37.6% 0.098 18)
-
Step 950
950
#40181A
oklch(27.1% 0.063 19.2)
#90333B 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) | #4A473B | 0.137 |
| Deuteranopia (no green cones) | #625A39 | 0.125 |
| Tritanopia (no blue cones) | #9E2136 | 0.034 |
| Achromatopsia (no color) | #535353 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90333B
#90333B
oklch(45.7% 0.126 18.6)
- #006467
#006467
oklch(45.7% 0.078 198.4)
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 #90333B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.034
- Red Brown #8B2E16 ΔE 0.043
- Brown #A52A2A ΔE 0.045
- Brick #A03623 ΔE 0.046
- Brown Red #922B05 ΔE 0.049
- Burnt Red #9F2305 ΔE 0.053
- Rust Brown #8B3103 ΔE 0.054
- Cranberry #9E003A ΔE 0.057
Use #90333B 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.