#51511E
Closest named color: Green Brown (#544E03). oklch(42.3% 0.072 109.1), rgb(81, 81, 30).
Aa
White text reads best on this color (8.24:1).
About this color
#51511E is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.072 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.018 away. White text reads best on it, at 8.24:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #51511E |
| RGB | rgb(81, 81, 30) |
| HSL | hsl(60, 46%, 22%) |
| OKLCH | oklch(42.3% 0.072 109.1) |
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 #51511E | 8.24:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #51511E | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #51511E text on white | 8.24:1 | AAA | Lc 88.5 | Fine for body text |
| #51511E 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#EAEBE2
oklch(93.7% 0.012 111.8)
-
Step 200
200
#DADBC9
oklch(88.6% 0.024 109.5)
-
Step 300
300
#C2C3A5
oklch(80.8% 0.041 108.8)
-
Step 400
400
#A3A474
oklch(70.6% 0.066 109)
-
Step 500
500
#8D8E4E
oklch(63.1% 0.086 109.4)
-
Step 600
600
#787831
oklch(55.7% 0.093 109.1)
-
Step 700
700
#656423
oklch(49% 0.086 108.4)
-
Step 800
800 (this color)
#51511E
oklch(42.3% 0.072 109.1)
-
Step 900
900
#44441F
oklch(37.7% 0.056 108.8)
-
Step 950
950
#282813
oklch(27.1% 0.035 108.5)
#51511E 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) | #584E18 | 0.013 |
| Deuteranopia (no green cones) | #584F21 | 0.014 |
| Tritanopia (no blue cones) | #574C46 | 0.064 |
| Achromatopsia (no color) | #4F4F4F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51511E
#51511E
oklch(42.3% 0.072 109.1)
- #4D4773
#4D4773
oklch(42.4% 0.072 289.2)
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 #51511E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.018
- Olive Brown #645403 ΔE 0.037
- Mud Brown #60460F ΔE 0.038
- Army Green #4B5D16 ΔE 0.041
- Navy Green #35530A ΔE 0.048
- Camouflage Green #4B6113 ΔE 0.054
- Pine #2B5D34 ΔE 0.055
- Camo Green #526525 ΔE 0.061
Use #51511E 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.