#A37E57
Closest named color: Puce (#A57E52). oklch(62% 0.071 67.4), rgb(163, 126, 87).
Aa
Black text reads best on this color (5.67:1).
About this color
#A37E57 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 62%, its chroma 0.071 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Puce (#A57E52), ΔE 0.007 away. Black text reads best on it, at 5.67:1.
| Hue family | Browns |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Puce (#A57E52) |
| Black text | 5.67:1 |
| White text | 3.69:1 |
Values
| HEX | #A37E57 |
| RGB | rgb(163, 126, 87) |
| HSL | hsl(31, 30%, 49%) |
| OKLCH | oklch(62% 0.071 67.4) |
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 #A37E57 | 3.69:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #A37E57 | 5.67:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #A37E57 text on white | 3.69:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #A37E57 text on black | 5.67:1 | AA | Lc -37.2 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EFE9E3
oklch(93.7% 0.01 67.7)
-
Step 200
200
#E2D7CC
oklch(88.5% 0.019 67.6)
-
Step 300
300
#D0BDA9
oklch(80.9% 0.035 68.7)
-
Step 400
400
#B89A7C
oklch(70.6% 0.055 66.7)
-
Step 500
500 (this color)
#A37E57
oklch(62% 0.071 67.4)
-
Step 600
600
#926A40
oklch(55.6% 0.077 66.4)
-
Step 700
700
#7C5932
oklch(49.2% 0.072 67.8)
-
Step 800
800
#65492A
oklch(42.8% 0.059 67.9)
-
Step 900
900
#523D26
oklch(37.7% 0.046 68.2)
-
Step 950
950
#302417
oklch(27.1% 0.029 68.4)
#A37E57 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) | #8A8054 | 0.041 |
| Deuteranopia (no green cones) | #938858 | 0.036 |
| Tritanopia (no blue cones) | #AF7674 | 0.056 |
| Achromatopsia (no color) | #858585 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37E57
#A37E57
oklch(62% 0.071 67.4)
- #638AAF
#638AAF
oklch(61.9% 0.071 247.7)
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 #A37E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Puce #A57E52 ΔE 0.007
- Tan Brown #AB7E4C ΔE 0.018
- Coffee #A6814C ΔE 0.018
- Light Brown #AD8150 ΔE 0.021
- Mocha #9D7651 ΔE 0.024
- Brown Grey #8D8468 ΔE 0.038
- Leather #AC7434 ΔE 0.038
- Clay Brown #B2713D ΔE 0.040
Use #A37E57 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.