#A37A64
Closest named color: Mocha (#9D7651). oklch(61.4% 0.061 49.4), rgb(163, 122, 100).
Aa
Black text reads best on this color (5.52:1).
About this color
#A37A64 is a medium-dark, muted brown. In OKLCH its lightness is 61%, its chroma 0.061 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Mocha (#9D7651), ΔE 0.027 away. Black text reads best on it, at 5.52:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mocha (#9D7651) |
| Black text | 5.52:1 |
| White text | 3.80:1 |
Values
| HEX | #A37A64 |
| RGB | rgb(163, 122, 100) |
| HSL | hsl(21, 26%, 52%) |
| OKLCH | oklch(61.4% 0.061 49.4) |
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 #A37A64 | 3.80:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #A37A64 | 5.52:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #A37A64 text on white | 3.80:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #A37A64 text on black | 5.52:1 | AA | Lc -36.2 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E3D6D0
oklch(88.5% 0.017 46.6)
-
Step 300
300
#D1BCB0
oklch(81% 0.029 51.8)
-
Step 400
400
#BA9887
oklch(70.6% 0.048 48)
-
Step 500
500 (this color)
#A37A64
oklch(61.4% 0.061 49.4)
-
Step 600
600
#936850
oklch(55.6% 0.066 50.1)
-
Step 700
700
#7D5641
oklch(49% 0.061 49.1)
-
Step 800
800
#664736
oklch(42.8% 0.051 49.7)
-
Step 900
900
#533B2F
oklch(37.6% 0.04 47.6)
-
Step 950
950
#31231C
oklch(27.1% 0.025 47.8)
#A37A64 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) | #857E62 | 0.049 |
| Deuteranopia (no green cones) | #8F8664 | 0.044 |
| Tritanopia (no blue cones) | #AE7374 | 0.039 |
| Achromatopsia (no color) | #838383 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37A64
#A37A64
oklch(61.4% 0.061 49.4)
- #5D8CA2
#5D8CA2
oklch(61.5% 0.061 229)
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 #A37A64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mocha #9D7651 ΔE 0.027
- Pinkish Brown #B17261 ΔE 0.029
- Puce #A57E52 ΔE 0.029
- Reddish Grey #997570 ΔE 0.031
- Tan Brown #AB7E4C ΔE 0.037
- Light Brown #AD8150 ΔE 0.040
- Coffee #A6814C ΔE 0.041
- Brown Grey #8D8468 ΔE 0.041
Use #A37A64 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.