#566B59
Closest named color: Dim Gray (#696969). oklch(50.5% 0.038 149), rgb(86, 107, 89).
Aa
White text reads best on this color (5.76:1).
About this color
#566B59 is a medium-dark, muted green. In OKLCH its lightness is 51%, its chroma 0.038 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.041 away. White text reads best on it, at 5.76:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.64:1 |
| White text | 5.76:1 |
Values
| HEX | #566B59 |
| RGB | rgb(86, 107, 89) |
| HSL | hsl(129, 11%, 38%) |
| OKLCH | oklch(50.5% 0.038 149) |
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 #566B59 | 5.76:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #566B59 | 3.64:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #566B59 text on white | 5.76:1 | AA | Lc 78.8 | Fine for body text |
| #566B59 text on black | 3.64:1 | AA large text | Lc -23.0 | 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
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D5DBD5
oklch(88.5% 0.01 145.5)
-
Step 300
300
#B9C4BA
oklch(80.9% 0.018 148.1)
-
Step 400
400
#95A697
oklch(70.7% 0.029 148.7)
-
Step 500
500
#7A907D
oklch(63% 0.038 149)
-
Step 600
600
#637A66
oklch(55.5% 0.041 148.6)
-
Step 700
700 (this color)
#566B59
oklch(50.5% 0.038 149)
-
Step 800
800
#435446
oklch(42.7% 0.031 150.1)
-
Step 900
900
#39453B
oklch(37.6% 0.023 150)
-
Step 950
950
#212922
oklch(27.1% 0.017 148.6)
#566B59 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) | #6B6758 | 0.032 |
| Deuteranopia (no green cones) | #68655A | 0.031 |
| Tritanopia (no blue cones) | #546A66 | 0.022 |
| Achromatopsia (no color) | #666666 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566B59
#566B59
oklch(50.5% 0.038 149)
- #715D6F
#715D6F
oklch(50.4% 0.037 329.4)
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 #566B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.041
- Dark Moss Green #606C38 ΔE 0.047
- Slate #516572 ΔE 0.049
- Dark Olive Green #556B2F ΔE 0.057
- Dark Taupe #7F684E ΔE 0.062
- Dark Aquamarine #017371 ΔE 0.064
- Grey Brown #7F7053 ΔE 0.065
- Deep Turquoise #017374 ΔE 0.066
Use #566B59 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.