#A37040
Closest named color: Mocha (#9D7651). oklch(58.8% 0.091 62.7), rgb(163, 112, 64).
Aa
Black text reads best on this color (4.94:1).
About this color
#A37040 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.091 and its hue 63°. Its hue sits on the warm side of the wheel. The nearest named color is Mocha (#9D7651), ΔE 0.021 away. Black text reads best on it, at 4.94:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Mocha (#9D7651) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #A37040 |
| RGB | rgb(163, 112, 64) |
| HSL | hsl(29, 44%, 45%) |
| OKLCH | oklch(58.8% 0.091 62.7) |
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 #A37040 | 4.24:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #A37040 | 4.94:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #A37040 text on white | 4.24:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #A37040 text on black | 4.94:1 | AA | Lc -32.5 | 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
#F0E8E2
oklch(93.6% 0.012 59.6)
-
Step 200
200
#E5D6CA
oklch(88.5% 0.023 61.2)
-
Step 300
300
#D4BBA6
oklch(80.8% 0.041 62.2)
-
Step 400
400
#BF9876
oklch(70.7% 0.066 62.5)
-
Step 500
500
#AE7E53
oklch(63.1% 0.084 62.3)
-
Step 600
600 (this color)
#A37040
oklch(58.8% 0.091 62.7)
-
Step 700
700
#825529
oklch(49% 0.084 62.9)
-
Step 800
800
#6A4623
oklch(42.7% 0.07 63.2)
-
Step 900
900
#563B22
oklch(37.7% 0.054 62.8)
-
Step 950
950
#332314
oklch(27.1% 0.035 63.6)
#A37040 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) | #80743C | 0.060 |
| Deuteranopia (no green cones) | #8C7F41 | 0.053 |
| Tritanopia (no blue cones) | #B16565 | 0.069 |
| Achromatopsia (no color) | #7B7B7B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37040
#A37040
oklch(58.8% 0.091 62.7)
- #4883AE
#4883AE
oklch(58.8% 0.091 242.1)
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 #A37040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mocha #9D7651 ΔE 0.021
- Leather #AC7434 ΔE 0.024
- Clay Brown #B2713D ΔE 0.027
- Earth #A2653E ΔE 0.029
- Puce #A57E52 ΔE 0.037
- Caramel #AF6F09 ΔE 0.039
- Tan Brown #AB7E4C ΔE 0.040
- Copper #B66325 ΔE 0.043
Use #A37040 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.