#A37438
Closest named color: Leather (#AC7434). oklch(59.5% 0.097 70.6), rgb(163, 116, 56).
Aa
Black text reads best on this color (5.11:1).
About this color
#A37438 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.097 and its hue 71°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.016 away. Black text reads best on it, at 5.11:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #A37438 |
| RGB | rgb(163, 116, 56) |
| HSL | hsl(34, 49%, 43%) |
| OKLCH | oklch(59.5% 0.097 70.6) |
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 #A37438 | 4.10:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #A37438 | 5.11:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #A37438 text on white | 4.10:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #A37438 text on black | 5.11:1 | AA | Lc -33.6 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E0
oklch(93.5% 0.014 67.7)
-
Step 200
200
#E5D7C7
oklch(88.6% 0.027 71.2)
-
Step 300
300
#D5BCA0
oklch(80.9% 0.048 70.2)
-
Step 400
400
#BF996C
oklch(70.7% 0.076 70.8)
-
Step 500
500 (this color)
#A37438
oklch(59.5% 0.097 70.6)
-
Step 600
600
#9A6721
oklch(55.6% 0.106 70.3)
-
Step 700
700
#835613
oklch(49.1% 0.098 71.1)
-
Step 800
800
#6B4614
oklch(42.7% 0.081 69.9)
-
Step 900
900
#573B18
oklch(37.7% 0.063 69.7)
-
Step 950
950
#33230F
oklch(27.1% 0.04 70.8)
#A37438 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) | #847732 | 0.054 |
| Deuteranopia (no green cones) | #8F8239 | 0.048 |
| Tritanopia (no blue cones) | #B16867 | 0.080 |
| Achromatopsia (no color) | #7D7D7D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37438
#A37438
oklch(59.5% 0.097 70.6)
- #5082B6
#5082B6
oklch(59.4% 0.097 250.6)
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 #A37438, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.016
- Mocha #9D7651 ΔE 0.027
- Clay Brown #B2713D ΔE 0.028
- Caramel #AF6F09 ΔE 0.031
- Puce #A57E52 ΔE 0.033
- Tan Brown #AB7E4C ΔE 0.034
- Coffee #A6814C ΔE 0.036
- Bronze #A87900 ΔE 0.037
Use #A37438 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.