#A37A45
Closest named color: Puce (#A57E52). oklch(60.9% 0.087 72), rgb(163, 122, 69).
Aa
Black text reads best on this color (5.42:1).
About this color
#A37A45 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.087 and its hue 72°. Its hue sits on the warm side of the wheel. The nearest named color is Puce (#A57E52), ΔE 0.016 away. Black text reads best on it, at 5.42:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Puce (#A57E52) |
| Black text | 5.42:1 |
| White text | 3.86:1 |
Values
| HEX | #A37A45 |
| RGB | rgb(163, 122, 69) |
| HSL | hsl(34, 41%, 45%) |
| OKLCH | oklch(60.9% 0.087 72) |
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 #A37A45 | 3.86:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #A37A45 | 5.42:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #A37A45 text on white | 3.86:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #A37A45 text on black | 5.42:1 | AA | Lc -35.6 | 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
#EFE9E1
oklch(93.7% 0.013 75.4)
-
Step 200
200
#E3D7C9
oklch(88.5% 0.023 71.8)
-
Step 300
300
#D2BDA3
oklch(80.9% 0.043 73.1)
-
Step 400
400
#BB9A72
oklch(70.7% 0.067 71.8)
-
Step 500
500 (this color)
#A37A45
oklch(60.9% 0.087 72)
-
Step 600
600
#95692E
oklch(55.5% 0.094 71.5)
-
Step 700
700
#7F5820
oklch(49.2% 0.088 72.6)
-
Step 800
800
#67481D
oklch(42.7% 0.072 72.5)
-
Step 900
900
#543C1D
oklch(37.6% 0.057 71.6)
-
Step 950
950
#312412
oklch(27.1% 0.036 74.3)
#A37A45 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) | #897C40 | 0.044 |
| Deuteranopia (no green cones) | #928546 | 0.039 |
| Tritanopia (no blue cones) | #B0706D | 0.071 |
| Achromatopsia (no color) | #818181 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37A45
#A37A45
oklch(60.9% 0.087 72)
- #5B86B6
#5B86B6
oklch(60.9% 0.088 252)
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 #A37A45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Puce #A57E52 ΔE 0.016
- Tan Brown #AB7E4C ΔE 0.019
- Coffee #A6814C ΔE 0.019
- Leather #AC7434 ΔE 0.022
- Mocha #9D7651 ΔE 0.023
- Light Brown #AD8150 ΔE 0.028
- Clay Brown #B2713D ΔE 0.031
- Bronze #A87900 ΔE 0.042
Use #A37A45 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.