#57521C
Closest named color: Green Brown (#544E03). oklch(43.2% 0.074 104), rgb(87, 82, 28).
Aa
White text reads best on this color (7.98:1).
About this color
#57521C is a dark, moderately saturated brown. In OKLCH its lightness is 43%, its chroma 0.074 and its hue 104°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.020 away. White text reads best on it, at 7.98:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.62:1 |
| White text | 7.98:1 |
Values
| HEX | #57521C |
| RGB | rgb(87, 82, 28) |
| HSL | hsl(55, 51%, 23%) |
| OKLCH | oklch(43.2% 0.074 104) |
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 #57521C | 7.98:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #57521C | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #57521C text on white | 7.98:1 | AAA | Lc 87.6 | Fine for body text |
| #57521C text on black | 2.62:1 | Fails | Lc -14.5 | Not readable |
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 800.
-
Step 50
50
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE1
oklch(93.5% 0.012 101.5)
-
Step 200
200
#DBDAC8
oklch(88.4% 0.024 104.3)
-
Step 300
300
#C5C2A3
oklch(80.8% 0.042 102.7)
-
Step 400
400
#A7A370
oklch(70.6% 0.069 104.2)
-
Step 500
500
#928C4A
oklch(63% 0.088 104)
-
Step 600
600
#7D762B
oklch(55.7% 0.096 104)
-
Step 700
700
#69631D
oklch(49.1% 0.09 104.4)
-
Step 800
800 (this color)
#57521C
oklch(43.2% 0.074 104)
-
Step 900
900
#47431C
oklch(37.7% 0.058 103.4)
-
Step 950
950
#292711
oklch(26.9% 0.036 104)
#57521C 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) | #594F16 | 0.009 |
| Deuteranopia (no green cones) | #5B521F | 0.008 |
| Tritanopia (no blue cones) | #5E4C47 | 0.069 |
| Achromatopsia (no color) | #515151 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57521C
#57521C
oklch(43.2% 0.074 104)
- #4B4A77
#4B4A77
oklch(43.1% 0.074 283.9)
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 #57521C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.020
- Olive Brown #645403 ΔE 0.027
- Mud Brown #60460F ΔE 0.036
- Army Green #4B5D16 ΔE 0.040
- Camouflage Green #4B6113 ΔE 0.051
- Camo Green #526525 ΔE 0.056
- Navy Green #35530A ΔE 0.056
- Greeny Brown #696006 ΔE 0.057
Use #57521C 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.