#A37C63
Closest named color: Puce (#A57E52). oklch(61.8% 0.061 54), rgb(163, 124, 99).
Aa
Black text reads best on this color (5.62:1).
About this color
#A37C63 is a medium-dark, muted brown. In OKLCH its lightness is 62%, its chroma 0.061 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Puce (#A57E52), ΔE 0.024 away. Black text reads best on it, at 5.62:1.
| Hue family | Browns |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Puce (#A57E52) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #A37C63 |
| RGB | rgb(163, 124, 99) |
| HSL | hsl(23, 26%, 51%) |
| OKLCH | oklch(61.8% 0.061 54) |
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 #A37C63 | 3.73:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #A37C63 | 5.62:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #A37C63 text on white | 3.73:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #A37C63 text on black | 5.62:1 | AA | Lc -36.8 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E2D6CF
oklch(88.4% 0.016 52.5)
-
Step 300
300
#D1BCAF
oklch(80.9% 0.03 53.9)
-
Step 400
400
#B99985
oklch(70.7% 0.048 53.7)
-
Step 500
500 (this color)
#A37C63
oklch(61.8% 0.061 54)
-
Step 600
600
#92694E
oklch(55.6% 0.066 54.3)
-
Step 700
700
#7C573F
oklch(49% 0.061 53.8)
-
Step 800
800
#654734
oklch(42.6% 0.051 53.3)
-
Step 900
900
#523C2E
oklch(37.7% 0.039 53.7)
-
Step 950
950
#30231B
oklch(26.9% 0.025 53)
#A37C63 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) | #877F61 | 0.046 |
| Deuteranopia (no green cones) | #908763 | 0.041 |
| Tritanopia (no blue cones) | #AE7575 | 0.041 |
| Achromatopsia (no color) | #848484 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37C63
#A37C63
oklch(61.8% 0.061 54)
- #608CA5
#608CA5
oklch(61.8% 0.061 234)
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 #A37C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Puce #A57E52 ΔE 0.024
- Mocha #9D7651 ΔE 0.027
- Tan Brown #AB7E4C ΔE 0.033
- Pinkish Brown #B17261 ΔE 0.033
- Light Brown #AD8150 ΔE 0.035
- Reddish Grey #997570 ΔE 0.036
- Coffee #A6814C ΔE 0.036
- Brown Grey #8D8468 ΔE 0.038
Use #A37C63 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.