#A36737
Closest named color: Earth (#A2653E). oklch(56.9% 0.1 57.5), rgb(163, 103, 55).
Aa
White text reads best on this color (4.61:1).
About this color
#A36737 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.100 and its hue 58°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.011 away. White text reads best on it, at 4.61:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.100) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.55:1 |
| White text | 4.61:1 |
Values
| HEX | #A36737 |
| RGB | rgb(163, 103, 55) |
| HSL | hsl(27, 50%, 43%) |
| OKLCH | oklch(56.9% 0.1 57.5) |
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 #A36737 | 4.61:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #A36737 | 4.55:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #A36737 text on white | 4.61:1 | AA | Lc 71.8 | Content text, not long reading |
| #A36737 text on black | 4.55:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F1E8E2
oklch(93.6% 0.013 56.2)
-
Step 200
200
#E7D5C9
oklch(88.4% 0.026 56)
-
Step 300
300
#D8BAA5
oklch(80.9% 0.045 57)
-
Step 400
400
#C39674
oklch(70.7% 0.072 58.3)
-
Step 500
500
#B47B50
oklch(63.2% 0.092 57.2)
-
Step 600
600 (this color)
#A36737
oklch(56.9% 0.1 57.5)
-
Step 700
700
#885225
oklch(49.2% 0.093 57.7)
-
Step 800
800
#6E4321
oklch(42.6% 0.076 57)
-
Step 900
900
#593920
oklch(37.6% 0.059 57.7)
-
Step 950
950
#342213
oklch(27% 0.037 60.1)
#A36737 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) | #796D32 | 0.075 |
| Deuteranopia (no green cones) | #877A37 | 0.067 |
| Tritanopia (no blue cones) | #B25A5C | 0.071 |
| Achromatopsia (no color) | #757575 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A36737
#A36737
oklch(56.9% 0.1 57.5)
- #337FAB
#337FAB
oklch(56.9% 0.1 237.7)
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 #A36737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.011
- Raw Umber #A75E09 ΔE 0.031
- Sepia #985E2B ΔE 0.033
- Copper #B66325 ΔE 0.035
- Orangey Brown #B16002 ΔE 0.036
- Umber #B26400 ΔE 0.037
- Clay Brown #B2713D ΔE 0.039
- Raw Sienna #9A6200 ΔE 0.039
Use #A36737 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.