#903635
Closest named color: Auburn (#9B2226). oklch(46% 0.123 23.8), rgb(144, 54, 53).
Aa
White text reads best on this color (7.59:1).
About this color
#903635 is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.123 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.035 away. White text reads best on it, at 7.59:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #903635 |
| RGB | rgb(144, 54, 53) |
| HSL | hsl(1, 46%, 39%) |
| OKLCH | oklch(46% 0.123 23.8) |
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 #903635 | 7.59:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #903635 | 2.76:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #903635 text on white | 7.59:1 | AAA | Lc 85.7 | Fine for body text |
| #903635 text on black | 2.76:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F5E6E4
oklch(93.6% 0.017 26.7)
-
Step 200
200
#EED1CF
oklch(88.4% 0.033 22.5)
-
Step 300
300
#E5B2AE
oklch(80.9% 0.06 23.6)
-
Step 400
400
#D58984
oklch(70.7% 0.094 23.8)
-
Step 500
500
#C86965
oklch(63% 0.121 23.6)
-
Step 600
600
#B44F4C
oklch(55.6% 0.132 24)
-
Step 700
700 (this color)
#903635
oklch(46% 0.123 23.8)
-
Step 800
800
#7D3533
oklch(42.7% 0.101 23.9)
-
Step 900
900
#652F2D
oklch(37.7% 0.078 23.7)
-
Step 950
950
#3C1C1A
oklch(27.1% 0.051 24.7)
#903635 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) | #4D4834 | 0.131 |
| Deuteranopia (no green cones) | #635B33 | 0.121 |
| Tritanopia (no blue cones) | #9E2437 | 0.038 |
| Achromatopsia (no color) | #545454 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903635
#903635
oklch(46% 0.123 23.8)
- #00646C
#00646C
oklch(45.9% 0.078 204.4)
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 #903635, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.035
- Red Brown #8B2E16 ΔE 0.036
- Brick #A03623 ΔE 0.038
- Brown Red #922B05 ΔE 0.041
- Brown #A52A2A ΔE 0.043
- Rust Brown #8B3103 ΔE 0.045
- Burnt Red #9F2305 ΔE 0.048
- Russet #A13905 ΔE 0.055
Use #903635 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.