#516D51
Closest named color: Dark Moss Green (#606C38). oklch(50.4% 0.055 144.7), rgb(81, 109, 81).
Aa
White text reads best on this color (5.74:1).
About this color
#516D51 is a medium-dark, muted green. In OKLCH its lightness is 50%, its chroma 0.055 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.035 away. White text reads best on it, at 5.74:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #516D51 |
| RGB | rgb(81, 109, 81) |
| HSL | hsl(120, 15%, 37%) |
| OKLCH | oklch(50.4% 0.055 144.7) |
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 #516D51 | 5.74:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #516D51 | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #516D51 text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #516D51 text on black | 3.65:1 | AA large text | Lc -23.1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD3
oklch(88.5% 0.016 145.4)
-
Step 300
300
#B7C5B6
oklch(80.8% 0.026 143.5)
-
Step 400
400
#91A891
oklch(70.7% 0.042 145.1)
-
Step 500
500
#769375
oklch(63.2% 0.055 144)
-
Step 600
600
#5E7D5E
oklch(55.7% 0.059 144.7)
-
Step 700
700 (this color)
#516D51
oklch(50.4% 0.055 144.7)
-
Step 800
800
#405640
oklch(42.8% 0.045 144.7)
-
Step 900
900
#364736
oklch(37.8% 0.036 144.8)
-
Step 950
950
#202920
oklch(26.9% 0.021 145)
#516D51 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) | #6E684F | 0.043 |
| Deuteranopia (no green cones) | #6A6552 | 0.042 |
| Tritanopia (no blue cones) | #4E6B65 | 0.033 |
| Achromatopsia (no color) | #666666 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516D51
#516D51
oklch(50.4% 0.055 144.7)
- #755A76
#755A76
oklch(50.5% 0.055 325.2)
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 #516D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.035
- Dark Olive Green #556B2F ΔE 0.042
- Camo Green #526525 ΔE 0.053
- Muddy Green #657432 ΔE 0.055
- Dim Gray #696969 ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.064
- Dark Green Blue #1F6357 ΔE 0.064
- Slate #516572 ΔE 0.065
Use #516D51 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.