#51510F
Closest named color: Green Brown (#544E03). oklch(42.2% 0.084 109.5), rgb(81, 81, 15).
Aa
White text reads best on this color (8.28:1).
About this color
#51510F is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.084 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.010 away. White text reads best on it, at 8.28:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #51510F |
| RGB | rgb(81, 81, 15) |
| HSL | hsl(60, 69%, 19%) |
| OKLCH | oklch(42.2% 0.084 109.5) |
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 #51510F | 8.28:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #51510F | 2.53:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #51510F text on white | 8.28:1 | AAA | Lc 88.5 | Fine for body text |
| #51510F text on black | 2.53:1 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#DADBC7
oklch(88.5% 0.027 109.3)
-
Step 300
300
#C2C4A0
oklch(80.9% 0.049 110.1)
-
Step 400
400
#A4A56B
oklch(70.7% 0.078 109.1)
-
Step 500
500
#8E8E41
oklch(63% 0.1 109)
-
Step 600
600
#78781E
oklch(55.6% 0.109 109.5)
-
Step 700
700
#65650E
oklch(49.1% 0.102 109.6)
-
Step 800
800 (this color)
#51510F
oklch(42.2% 0.084 109.5)
-
Step 900
900
#444417
oklch(37.6% 0.065 109.1)
-
Step 950
950
#28280F
oklch(27% 0.041 108.8)
#51510F 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) | #584D02 | 0.015 |
| Deuteranopia (no green cones) | #594F14 | 0.016 |
| Tritanopia (no blue cones) | #574B45 | 0.077 |
| Achromatopsia (no color) | #4E4E4E | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51510F
#51510F
oklch(42.2% 0.084 109.5)
- #4D4578
#4D4578
oklch(42.2% 0.083 289.5)
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 #51510F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.010
- Olive Brown #645403 ΔE 0.034
- Army Green #4B5D16 ΔE 0.036
- Mud Brown #60460F ΔE 0.041
- Navy Green #35530A ΔE 0.043
- Camouflage Green #4B6113 ΔE 0.049
- Pine #2B5D34 ΔE 0.057
- Camo Green #526525 ΔE 0.059
Use #51510F 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.