#51681B
Closest named color: Camo Green (#526525). oklch(48.2% 0.105 124.8), rgb(81, 104, 27).
Aa
White text reads best on this color (6.27:1).
About this color
#51681B is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 48%, its chroma 0.105 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Camo Green (#526525), ΔE 0.015 away. White text reads best on it, at 6.27:1.
| Hue family | Yellows |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Camo Green (#526525) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #51681B |
| RGB | rgb(81, 104, 27) |
| HSL | hsl(78, 59%, 26%) |
| OKLCH | oklch(48.2% 0.105 124.8) |
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 #51681B | 6.27:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #51681B | 3.34:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #51681B text on white | 6.27:1 | AA | Lc 81.1 | Fine for body text |
| #51681B text on black | 3.34:1 | AA large text | Lc -20.7 | 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 700.
-
Step 50
50
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D5DDC9
oklch(88.6% 0.028 124.8)
-
Step 300
300
#B9C7A3
oklch(80.9% 0.051 124.8)
-
Step 400
400
#95AA71
oklch(70.7% 0.082 124.9)
-
Step 500
500
#7B944B
oklch(63% 0.104 124.8)
-
Step 600
600
#647E2C
oklch(55.5% 0.113 124.9)
-
Step 700
700 (this color)
#51681B
oklch(48.2% 0.105 124.8)
-
Step 800
800
#44571B
oklch(42.7% 0.088 125)
-
Step 900
900
#39481D
oklch(37.8% 0.068 125.5)
-
Step 950
950
#222A12
oklch(27% 0.042 124.3)
#51681B 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) | #6E610E | 0.046 |
| Deuteranopia (no green cones) | #6B6021 | 0.047 |
| Tritanopia (no blue cones) | #556359 | 0.086 |
| Achromatopsia (no color) | #606060 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51681B
#51681B
oklch(48.2% 0.105 124.8)
- #6C4D8E
#6C4D8E
oklch(48.2% 0.106 304.7)
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 #51681B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Camo Green #526525 ΔE 0.015
- Dark Olive Green #556B2F ΔE 0.021
- Mud Green #606602 ΔE 0.022
- Camouflage Green #4B6113 ΔE 0.024
- Army Green #4B5D16 ΔE 0.035
- Greeny Brown #696006 ΔE 0.039
- Dark Moss Green #606C38 ΔE 0.040
- Browny Green #6F6C0A ΔE 0.047
Use #51681B 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.