#A37151
Closest named color: Mocha (#9D7651). oklch(59.3% 0.078 53.3), rgb(163, 113, 81).
Aa
Black text reads best on this color (5.03:1).
About this color
#A37151 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.078 and its hue 53°. Its hue sits on the warm side of the wheel. The nearest named color is Mocha (#9D7651), ΔE 0.016 away. Black text reads best on it, at 5.03:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Mocha (#9D7651) |
| Black text | 5.03:1 |
| White text | 4.16:1 |
Values
| HEX | #A37151 |
| RGB | rgb(163, 113, 81) |
| HSL | hsl(23, 34%, 48%) |
| OKLCH | oklch(59.3% 0.078 53.3) |
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 #A37151 | 4.16:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #A37151 | 5.03:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #A37151 text on white | 4.16:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #A37151 text on black | 5.03:1 | AA | Lc -33.1 | 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 600.
-
Step 50
50
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E4
oklch(93.6% 0.01 48.6)
-
Step 200
200
#E4D6CD
oklch(88.5% 0.02 55.1)
-
Step 300
300
#D4BBAC
oklch(80.9% 0.035 53)
-
Step 400
400
#BD9880
oklch(70.8% 0.056 54.6)
-
Step 500
500
#AC7E60
oklch(63.1% 0.071 54.1)
-
Step 600
600 (this color)
#A37151
oklch(59.3% 0.078 53.3)
-
Step 700
700
#815538
oklch(49.1% 0.072 53.6)
-
Step 800
800
#69462F
oklch(42.8% 0.06 53.8)
-
Step 900
900
#553B2A
oklch(37.7% 0.046 54)
-
Step 950
950
#322219
oklch(26.9% 0.029 50.4)
#A37151 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) | #7F764F | 0.061 |
| Deuteranopia (no green cones) | #8B8051 | 0.055 |
| Tritanopia (no blue cones) | #B06869 | 0.052 |
| Achromatopsia (no color) | #7C7C7C | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37151
#A37151
oklch(59.3% 0.078 53.3)
- #4B86A5
#4B86A5
oklch(59.3% 0.078 233.1)
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 #A37151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mocha #9D7651 ΔE 0.016
- Earth #A2653E ΔE 0.032
- Clay Brown #B2713D ΔE 0.033
- Pinkish Brown #B17261 ΔE 0.034
- Puce #A57E52 ΔE 0.035
- Clay #B66A50 ΔE 0.036
- Leather #AC7434 ΔE 0.037
- Tan Brown #AB7E4C ΔE 0.041
Use #A37151 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.