#A37E33
Closest named color: Bronze (#A87900). oklch(61.5% 0.103 82.2), rgb(163, 126, 51).
Aa
Black text reads best on this color (5.58:1).
About this color
#A37E33 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.103 and its hue 82°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.024 away. Black text reads best on it, at 5.58:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #A37E33 |
| RGB | rgb(163, 126, 51) |
| HSL | hsl(40, 52%, 42%) |
| OKLCH | oklch(61.5% 0.103 82.2) |
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 #A37E33 | 3.75:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #A37E33 | 5.58:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #A37E33 text on white | 3.75:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #A37E33 text on black | 5.58:1 | AA | Lc -36.7 | 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
#EFE9DF
oklch(93.6% 0.015 80.7)
-
Step 200
200
#E2D8C5
oklch(88.5% 0.028 83.5)
-
Step 300
300
#D1BE9C
oklch(80.9% 0.051 82.1)
-
Step 400
400
#BA9C65
oklch(70.7% 0.081 81.9)
-
Step 500
500 (this color)
#A37E33
oklch(61.5% 0.103 82.2)
-
Step 600
600
#936C0A
oklch(55.6% 0.112 82.8)
-
Step 700
700
#7D5A00
oklch(49.1% 0.101 82.2)
-
Step 800
800
#664904
oklch(42.6% 0.086 81.8)
-
Step 900
900
#533E11
oklch(37.8% 0.067 82.8)
-
Step 950
950
#31240C
oklch(27% 0.042 80.6)
#A37E33 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) | #8E7E2A | 0.037 |
| Deuteranopia (no green cones) | #968836 | 0.032 |
| Tritanopia (no blue cones) | #B1736E | 0.090 |
| Achromatopsia (no color) | #848484 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37E33
#A37E33
oklch(61.5% 0.103 82.2)
- #6284C2
#6284C2
oklch(61.4% 0.102 261.8)
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 #A37E33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.024
- Coffee #A6814C ΔE 0.025
- Mustard Brown #AC7E04 ΔE 0.026
- Leather #AC7434 ΔE 0.030
- Golden Brown #B27A01 ΔE 0.030
- Tan Brown #AB7E4C ΔE 0.031
- Puce #A57E52 ΔE 0.033
- Light Brown #AD8150 ΔE 0.035
Use #A37E33 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.