#903B2F
Closest named color: Brick (#A03623). oklch(46.6% 0.118 30.2), rgb(144, 59, 47).
Aa
White text reads best on this color (7.36:1).
About this color
#903B2F is a medium-dark, moderately saturated red. In OKLCH its lightness is 47%, its chroma 0.118 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.032 away. White text reads best on it, at 7.36:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #903B2F |
| RGB | rgb(144, 59, 47) |
| HSL | hsl(7, 51%, 37%) |
| OKLCH | oklch(46.6% 0.118 30.2) |
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 #903B2F | 7.36:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #903B2F | 2.85:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #903B2F text on white | 7.36:1 | AAA | Lc 85.0 | Fine for body text |
| #903B2F text on black | 2.85:1 | Fails | Lc -17.1 | 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
#EDD2CD
oklch(88.5% 0.031 30.2)
-
Step 300
300
#E3B4AB
oklch(81% 0.056 30.8)
-
Step 400
400
#D38B7E
oklch(70.7% 0.091 30.7)
-
Step 500
500
#C66C5E
oklch(63% 0.117 30)
-
Step 600
600
#B15244
oklch(55.5% 0.127 30.2)
-
Step 700
700 (this color)
#903B2F
oklch(46.6% 0.118 30.2)
-
Step 800
800
#7C372D
oklch(42.7% 0.098 30.1)
-
Step 900
900
#643028
oklch(37.6% 0.077 30.2)
-
Step 950
950
#3B1D18
oklch(27.1% 0.048 30.5)
#903B2F 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) | #514A2D | 0.122 |
| Deuteranopia (no green cones) | #665D2D | 0.113 |
| Tritanopia (no blue cones) | #9E2A38 | 0.043 |
| Achromatopsia (no color) | #565656 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903B2F
#903B2F
oklch(46.6% 0.118 30.2)
- #006573
#006573
oklch(46.5% 0.081 211.2)
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 #903B2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.032
- Red Brown #8B2E16 ΔE 0.034
- Brown Red #922B05 ΔE 0.038
- Rust Brown #8B3103 ΔE 0.039
- Saddle Brown #8B4513 ΔE 0.042
- Auburn #9B2226 ΔE 0.043
- Russet #A13905 ΔE 0.044
- Brown #A52A2A ΔE 0.046
Use #903B2F 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.