#A57037
Closest named color: Leather (#AC7434). oklch(58.9% 0.099 65.6), rgb(165, 112, 55).
Aa
Black text reads best on this color (4.97:1).
About this color
#A57037 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.099 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.018 away. Black text reads best on it, at 4.97:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.099) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #A57037 |
| RGB | rgb(165, 112, 55) |
| HSL | hsl(31, 50%, 43%) |
| OKLCH | oklch(58.9% 0.099 65.6) |
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 #A57037 | 4.22:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #A57037 | 4.97:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #A57037 text on white | 4.22:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #A57037 text on black | 4.97:1 | AA | Lc -32.7 | 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 600.
-
Step 50
50
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E1
oklch(93.5% 0.013 63.9)
-
Step 200
200
#E5D6C8
oklch(88.4% 0.025 65.5)
-
Step 300
300
#D5BBA3
oklch(80.8% 0.044 64.9)
-
Step 400
400
#C09871
oklch(70.7% 0.072 65.5)
-
Step 500
500
#AF7E4B
oklch(63.1% 0.091 66)
-
Step 600
600 (this color)
#A57037
oklch(58.9% 0.099 65.6)
-
Step 700
700
#84551F
oklch(49.2% 0.092 65.9)
-
Step 800
800
#6B461C
oklch(42.8% 0.076 66.5)
-
Step 900
900
#573B1D
oklch(37.8% 0.059 66.2)
-
Step 950
950
#332312
oklch(27.1% 0.037 66.8)
#A57037 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) | #817431 | 0.063 |
| Deuteranopia (no green cones) | #8E8038 | 0.055 |
| Tritanopia (no blue cones) | #B36463 | 0.076 |
| Achromatopsia (no color) | #7B7B7B | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A57037
#A57037
oklch(58.9% 0.099 65.6)
- #4682B4
#4682B4
oklch(58.8% 0.099 245.7)
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 #A57037, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.018
- Clay Brown #B2713D ΔE 0.025
- Mocha #9D7651 ΔE 0.029
- Caramel #AF6F09 ΔE 0.030
- Earth #A2653E ΔE 0.033
- Umber #B26400 ΔE 0.038
- Puce #A57E52 ΔE 0.039
- Copper #B66325 ΔE 0.039
Use #A57037 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.