#51571A
Closest named color: Army Green (#4B5D16). oklch(43.8% 0.083 114.7), rgb(81, 87, 26).
Aa
White text reads best on this color (7.69:1).
About this color
#51571A is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.083 and its hue 115°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Army Green (#4B5D16), ΔE 0.021 away. White text reads best on it, at 7.69:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Army Green (#4B5D16) |
| Black text | 2.72:1 |
| White text | 7.69:1 |
Values
| HEX | #51571A |
| RGB | rgb(81, 87, 26) |
| HSL | hsl(66, 54%, 22%) |
| OKLCH | oklch(43.8% 0.083 114.7) |
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 #51571A | 7.69:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #51571A | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #51571A text on white | 7.69:1 | AAA | Lc 86.7 | Fine for body text |
| #51571A text on black | 2.72:1 | Fails | Lc -15.4 | 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
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D8DCC8
oklch(88.6% 0.027 116.1)
-
Step 300
300
#BFC5A1
oklch(80.9% 0.049 115.2)
-
Step 400
400
#9FA76E
oklch(70.8% 0.078 114.9)
-
Step 500
500
#889046
oklch(63% 0.099 114.4)
-
Step 600
600
#727A25
oklch(55.6% 0.108 114.6)
-
Step 700
700
#606717
oklch(49.2% 0.1 114.5)
-
Step 800
800 (this color)
#51571A
oklch(43.8% 0.083 114.7)
-
Step 900
900
#41451A
oklch(37.6% 0.064 113.9)
-
Step 950
950
#262910
oklch(27.1% 0.041 114.9)
#51571A 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) | #5E5212 | 0.024 |
| Deuteranopia (no green cones) | #5D541E | 0.023 |
| Tritanopia (no blue cones) | #56524B | 0.073 |
| Achromatopsia (no color) | #535353 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51571A
#51571A
oklch(43.8% 0.083 114.7)
- #55487B
#55487B
oklch(43.8% 0.083 294.4)
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 #51571A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Army Green #4B5D16 ΔE 0.021
- Green Brown #544E03 ΔE 0.027
- Olive Brown #645403 ΔE 0.031
- Camouflage Green #4B6113 ΔE 0.034
- Camo Green #526525 ΔE 0.042
- Navy Green #35530A ΔE 0.047
- Pine #2B5D34 ΔE 0.049
- Greeny Brown #696006 ΔE 0.051
Use #51571A 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.