#A37720
Closest named color: Bronze (#A87900). oklch(59.9% 0.113 79.6), rgb(163, 119, 32).
Aa
Black text reads best on this color (5.21:1).
About this color
#A37720 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.113 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.016 away. Black text reads best on it, at 5.21:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.21:1 |
| White text | 4.02:1 |
Values
| HEX | #A37720 |
| RGB | rgb(163, 119, 32) |
| HSL | hsl(40, 67%, 38%) |
| OKLCH | oklch(59.9% 0.113 79.6) |
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 #A37720 | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #A37720 | 5.21:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #A37720 text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #A37720 text on black | 5.21:1 | AA | Lc -34.3 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DE
oklch(93.6% 0.017 79.3)
-
Step 200
200
#E4D7C3
oklch(88.4% 0.03 78.8)
-
Step 300
300
#D4BD99
oklch(80.9% 0.055 78.9)
-
Step 400
400
#BE9B5F
oklch(70.8% 0.088 80.1)
-
Step 500
500 (this color)
#A37720
oklch(59.9% 0.113 79.6)
-
Step 600
600
#976A00
oklch(55.7% 0.116 79.3)
-
Step 700
700
#7F5900
oklch(49.2% 0.102 79.8)
-
Step 800
800
#684800
oklch(42.6% 0.088 79.5)
-
Step 900
900
#563C08
oklch(37.6% 0.073 79)
-
Step 950
950
#322408
oklch(27.1% 0.047 81.6)
#A37720 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) | #88780F | 0.048 |
| Deuteranopia (no green cones) | #938324 | 0.039 |
| Tritanopia (no blue cones) | #B26A66 | 0.098 |
| Achromatopsia (no color) | #7F7F7F | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37720
#A37720
oklch(59.9% 0.113 79.6)
- #5680C3
#5680C3
oklch(59.9% 0.113 259.4)
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 #A37720, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.016
- Caramel #AF6F09 ΔE 0.026
- Leather #AC7434 ΔE 0.026
- Mustard Brown #AC7E04 ΔE 0.028
- Golden Brown #B27A01 ΔE 0.029
- Hazel #8E7618 ΔE 0.037
- Coffee #A6814C ΔE 0.041
- Tan Brown #AB7E4C ΔE 0.043
Use #A37720 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.