#566151
Closest named color: Slate (#516572). oklch(47.8% 0.029 135.8), rgb(86, 97, 81).
Aa
White text reads best on this color (6.51:1).
About this color
#566151 is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.050 away. White text reads best on it, at 6.51:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #566151 |
| RGB | rgb(86, 97, 81) |
| HSL | hsl(101, 9%, 35%) |
| OKLCH | oklch(47.8% 0.029 135.8) |
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 #566151 | 6.51:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #566151 | 3.22:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #566151 text on white | 6.51:1 | AA | Lc 82.3 | Fine for body text |
| #566151 text on black | 3.22:1 | AA large text | Lc -19.6 | 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D7DAD5
oklch(88.5% 0.007 132.4)
-
Step 300
300
#BDC3BA
oklch(81% 0.014 134.9)
-
Step 400
400
#9BA496
oklch(70.7% 0.022 134.1)
-
Step 500
500
#828E7D
oklch(63.2% 0.029 136.4)
-
Step 600
600
#6B7866
oklch(55.6% 0.031 137)
-
Step 700
700 (this color)
#566151
oklch(47.8% 0.029 135.8)
-
Step 800
800
#495245
oklch(42.6% 0.024 136)
-
Step 900
900
#3D443A
oklch(37.7% 0.019 136.2)
-
Step 950
950
#242822
oklch(27.1% 0.012 135.1)
#566151 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) | #625E50 | 0.019 |
| Deuteranopia (no green cones) | #615D52 | 0.021 |
| Tritanopia (no blue cones) | #56605C | 0.019 |
| Achromatopsia (no color) | #5E5E5E | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566151
#566151
oklch(47.8% 0.029 135.8)
- #645868
#645868
oklch(47.8% 0.029 317.7)
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 #566151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.050
- Dim Gray #696969 ΔE 0.051
- Dark Moss Green #606C38 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.064
- Camo Green #526525 ΔE 0.064
- Dark Aqua #05696B ΔE 0.070
- Dark Taupe #7F684E ΔE 0.071
Use #566151 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.