#51511A
Closest named color: Green Brown (#544E03). oklch(42.3% 0.075 109.2), rgb(81, 81, 26).
Aa
White text reads best on this color (8.26:1).
About this color
#51511A is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.075 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.014 away. White text reads best on it, at 8.26:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #51511A |
| RGB | rgb(81, 81, 26) |
| HSL | hsl(60, 51%, 21%) |
| OKLCH | oklch(42.3% 0.075 109.2) |
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 #51511A | 8.26:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #51511A | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #51511A text on white | 8.26:1 | AAA | Lc 88.5 | Fine for body text |
| #51511A text on black | 2.54:1 | Fails | Lc -13.7 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#DADBC9
oklch(88.6% 0.024 109.5)
-
Step 300
300
#C2C3A3
oklch(80.8% 0.043 108.8)
-
Step 400
400
#A3A571
oklch(70.7% 0.071 109.9)
-
Step 500
500
#8D8E4B
oklch(63.1% 0.09 109.5)
-
Step 600
600
#78782C
oklch(55.7% 0.098 109.2)
-
Step 700
700
#65651E
oklch(49.2% 0.092 109.3)
-
Step 800
800 (this color)
#51511A
oklch(42.3% 0.075 109.2)
-
Step 900
900
#44441D
oklch(37.7% 0.058 108.9)
-
Step 950
950
#282812
oklch(27.1% 0.037 108.6)
#51511A 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) | #584D13 | 0.015 |
| Deuteranopia (no green cones) | #584F1D | 0.014 |
| Tritanopia (no blue cones) | #574C46 | 0.068 |
| Achromatopsia (no color) | #4E4E4E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51511A
#51511A
oklch(42.3% 0.075 109.2)
- #4D4674
#4D4674
oklch(42.2% 0.075 289.7)
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 #51511A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.014
- Olive Brown #645403 ΔE 0.036
- Mud Brown #60460F ΔE 0.038
- Army Green #4B5D16 ΔE 0.039
- Navy Green #35530A ΔE 0.046
- Camouflage Green #4B6113 ΔE 0.052
- Pine #2B5D34 ΔE 0.055
- Camo Green #526525 ΔE 0.060
Use #51511A 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.