#903913
Closest named color: Rust Brown (#8B3103). oklch(46% 0.127 41.2), rgb(144, 57, 19).
Aa
White text reads best on this color (7.55:1).
About this color
#903913 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 46%, its chroma 0.127 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.021 away. White text reads best on it, at 7.55:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.78:1 |
| White text | 7.55:1 |
Values
| HEX | #903913 |
| RGB | rgb(144, 57, 19) |
| HSL | hsl(18, 77%, 32%) |
| OKLCH | oklch(46% 0.127 41.2) |
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 #903913 | 7.55:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #903913 | 2.78:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #903913 text on white | 7.55:1 | AAA | Lc 85.5 | Fine for body text |
| #903913 text on black | 2.78:1 | Fails | Lc -16.5 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EED2C8
oklch(88.4% 0.034 40.7)
-
Step 300
300
#E4B4A2
oklch(80.8% 0.061 41.5)
-
Step 400
400
#D58B70
oklch(70.6% 0.099 40.8)
-
Step 500
500
#C86D4A
oklch(63.1% 0.126 41.4)
-
Step 600
600
#B4522B
oklch(55.6% 0.138 41)
-
Step 700
700 (this color)
#903913
oklch(46% 0.127 41.2)
-
Step 800
800
#7D371B
oklch(42.6% 0.105 41.1)
-
Step 900
900
#65311C
oklch(37.8% 0.082 41.9)
-
Step 950
950
#3B1D11
oklch(26.9% 0.052 42.1)
#903913 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) | #52480C | 0.124 |
| Deuteranopia (no green cones) | #675C0F | 0.114 |
| Tritanopia (no blue cones) | #9F2332 | 0.061 |
| Achromatopsia (no color) | #545454 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903913
#903913
oklch(46% 0.127 41.2)
- #006279
#006279
oklch(46% 0.084 221.2)
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 #903913, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.021
- Brown Red #922B05 ΔE 0.025
- Red Brown #8B2E16 ΔE 0.027
- Saddle Brown #8B4513 ΔE 0.028
- Russet #A13905 ΔE 0.035
- Brick #A03623 ΔE 0.036
- Burnt Red #9F2305 ΔE 0.041
- Burnt Umber #A0450E ΔE 0.045
Use #903913 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.