#A37A2B
Closest named color: Bronze (#A87900). oklch(60.6% 0.107 80.3), rgb(163, 122, 43).
Aa
Black text reads best on this color (5.37:1).
About this color
#A37A2B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.107 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.019 away. Black text reads best on it, at 5.37:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #A37A2B |
| RGB | rgb(163, 122, 43) |
| HSL | hsl(40, 58%, 40%) |
| OKLCH | oklch(60.6% 0.107 80.3) |
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 #A37A2B | 3.90:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #A37A2B | 5.37:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #A37A2B text on white | 3.90:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #A37A2B text on black | 5.37:1 | AA | Lc -35.3 | 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
#EFE9DF
oklch(93.6% 0.015 80.7)
-
Step 200
200
#E3D8C4
oklch(88.6% 0.029 82.6)
-
Step 300
300
#D2BE9B
oklch(80.9% 0.052 81.6)
-
Step 400
400
#BC9B63
oklch(70.7% 0.083 80)
-
Step 500
500 (this color)
#A37A2B
oklch(60.6% 0.107 80.3)
-
Step 600
600
#966A00
oklch(55.5% 0.115 79.9)
-
Step 700
700
#7E5900
oklch(49% 0.101 80.5)
-
Step 800
800
#684900
oklch(42.8% 0.089 80.7)
-
Step 900
900
#553D0D
oklch(37.8% 0.07 80.2)
-
Step 950
950
#32240A
oklch(27.1% 0.045 80.2)
#A37A2B 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) | #8A7B20 | 0.044 |
| Deuteranopia (no green cones) | #94852E | 0.036 |
| Tritanopia (no blue cones) | #B16E6A | 0.094 |
| Achromatopsia (no color) | #818181 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37A2B
#A37A2B
oklch(60.6% 0.107 80.3)
- #5C82C2
#5C82C2
oklch(60.6% 0.107 260.4)
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 #A37A2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.019
- Leather #AC7434 ΔE 0.025
- Mustard Brown #AC7E04 ΔE 0.027
- Golden Brown #B27A01 ΔE 0.029
- Caramel #AF6F09 ΔE 0.031
- Coffee #A6814C ΔE 0.033
- Tan Brown #AB7E4C ΔE 0.036
- Puce #A57E52 ΔE 0.038
Use #A37A2B 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.