#904037
Closest named color: Brick (#A03623). oklch(47.5% 0.11 28.4), rgb(144, 64, 55).
Aa
White text reads best on this color (7.06:1).
About this color
#904037 is a medium-dark, moderately saturated red. In OKLCH its lightness is 47%, its chroma 0.110 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.036 away. White text reads best on it, at 7.06:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #904037 |
| RGB | rgb(144, 64, 55) |
| HSL | hsl(6, 45%, 39%) |
| OKLCH | oklch(47.5% 0.11 28.4) |
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 #904037 | 7.06:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #904037 | 2.97:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #904037 text on white | 7.06:1 | AAA | Lc 84.0 | Fine for body text |
| #904037 text on black | 2.97:1 | Fails | Lc -18.0 | 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 700.
-
Step 50
50
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F4E6E4
oklch(93.5% 0.016 27.3)
-
Step 200
200
#ECD2CE
oklch(88.4% 0.03 28.1)
-
Step 300
300
#E1B4AD
oklch(80.8% 0.054 28.5)
-
Step 400
400
#D18C82
oklch(70.7% 0.086 28.5)
-
Step 500
500
#C36E63
oklch(63.1% 0.11 28.3)
-
Step 600
600
#AE554A
oklch(55.6% 0.119 28.7)
-
Step 700
700 (this color)
#904037
oklch(47.5% 0.11 28.4)
-
Step 800
800
#793931
oklch(42.7% 0.091 28.8)
-
Step 900
900
#62322B
oklch(37.8% 0.071 29.5)
-
Step 950
950
#3A1D1A
oklch(27% 0.046 26.8)
#904037 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) | #544E36 | 0.114 |
| Deuteranopia (no green cones) | #685F35 | 0.106 |
| Tritanopia (no blue cones) | #9D323E | 0.039 |
| Achromatopsia (no color) | #585858 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #904037
#904037
oklch(47.5% 0.11 28.4)
- #006874
#006874
oklch(47.3% 0.082 208.6)
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 #904037, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.036
- Saddle Brown #8B4513 ΔE 0.043
- Red Brown #8B2E16 ΔE 0.046
- Russet #A13905 ΔE 0.048
- Brown Red #922B05 ΔE 0.050
- Rust Brown #8B3103 ΔE 0.050
- Brown #A52A2A ΔE 0.050
- Auburn #9B2226 ΔE 0.051
Use #904037 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.