#516557
Closest named color: Slate (#516572). oklch(48.6% 0.033 154.5), rgb(81, 101, 87).
Aa
White text reads best on this color (6.27:1).
About this color
#516557 is a medium-dark, muted green. In OKLCH its lightness is 49%, its chroma 0.033 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate (#516572), ΔE 0.044 away. White text reads best on it, at 6.27:1.
| Hue family | Greens |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Slate (#516572) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #516557 |
| RGB | rgb(81, 101, 87) |
| HSL | hsl(138, 11%, 36%) |
| OKLCH | oklch(48.6% 0.033 154.5) |
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 #516557 | 6.27:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #516557 | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #516557 text on white | 6.27:1 | AA | Lc 81.2 | Fine for body text |
| #516557 text on black | 3.34:1 | AA large text | Lc -20.6 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D5DBD6
oklch(88.5% 0.009 150.7)
-
Step 300
300
#B9C4BC
oklch(80.9% 0.016 154.4)
-
Step 400
400
#95A69A
oklch(70.8% 0.026 154.9)
-
Step 500
500
#7B9081
oklch(63.2% 0.033 154.3)
-
Step 600
600
#647A6A
oklch(55.7% 0.036 153.6)
-
Step 700
700 (this color)
#516557
oklch(48.6% 0.033 154.5)
-
Step 800
800
#445448
oklch(42.8% 0.028 152.7)
-
Step 900
900
#39453D
oklch(37.7% 0.021 156.1)
-
Step 950
950
#212823
oklch(26.8% 0.014 154.3)
#516557 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) | #656256 | 0.030 |
| Deuteranopia (no green cones) | #615F58 | 0.029 |
| Tritanopia (no blue cones) | #4E6461 | 0.017 |
| Achromatopsia (no color) | #606060 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516557
#516557
oklch(48.6% 0.033 154.5)
- #6B5867
#6B5867
oklch(48.4% 0.034 333.4)
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 #516557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.044
- Dim Gray #696969 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.053
- Dark Moss Green #606C38 ΔE 0.057
- Dark Aqua #05696B ΔE 0.061
- Dark Olive Green #556B2F ΔE 0.063
- Dark Aquamarine #017371 ΔE 0.065
- Camo Green #526525 ΔE 0.067
Use #516557 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.