#57591B
Closest named color: Army Green (#4B5D16). oklch(44.9% 0.083 111.1), rgb(87, 89, 27).
Aa
White text reads best on this color (7.36:1).
About this color
#57591B is a dark, moderately saturated brown. In OKLCH its lightness is 45%, its chroma 0.083 and its hue 111°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Army Green (#4B5D16), ΔE 0.023 away. White text reads best on it, at 7.36:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Army Green (#4B5D16) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #57591B |
| RGB | rgb(87, 89, 27) |
| HSL | hsl(62, 53%, 23%) |
| OKLCH | oklch(44.9% 0.083 111.1) |
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 #57591B | 7.36:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #57591B | 2.85:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #57591B text on white | 7.36:1 | AAA | Lc 85.5 | Fine for body text |
| #57591B text on black | 2.85:1 | Fails | Lc -16.5 | Dividers and decoration only |
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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#D9DBC7
oklch(88.4% 0.027 111.6)
-
Step 300
300
#C1C4A0
oklch(80.9% 0.049 111.4)
-
Step 400
400
#A2A66C
oklch(70.8% 0.079 111.6)
-
Step 500
500
#8C8F43
oklch(63.1% 0.1 111)
-
Step 600
600
#767921
oklch(55.6% 0.108 111.4)
-
Step 700
700
#636513
oklch(48.9% 0.099 111)
-
Step 800
800 (this color)
#57591B
oklch(44.9% 0.083 111.1)
-
Step 900
900
#434518
oklch(37.8% 0.065 111.5)
-
Step 950
950
#27280F
oklch(26.9% 0.041 110.9)
#57591B 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) | #605513 | 0.017 |
| Deuteranopia (no green cones) | #61571F | 0.019 |
| Tritanopia (no blue cones) | #5D534C | 0.074 |
| Achromatopsia (no color) | #565656 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57591B
#57591B
oklch(44.9% 0.083 111.1)
- #554C7F
#554C7F
oklch(44.8% 0.082 290.8)
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 #57591B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Army Green #4B5D16 ΔE 0.023
- Olive Brown #645403 ΔE 0.024
- Camouflage Green #4B6113 ΔE 0.032
- Green Brown #544E03 ΔE 0.034
- Camo Green #526525 ΔE 0.035
- Greeny Brown #696006 ΔE 0.040
- Mud Green #606602 ΔE 0.047
- Mud #735C12 ΔE 0.049
Use #57591B 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.