#566E63
Closest named color: Dim Gray (#696969). oklch(51.5% 0.033 165.4), rgb(86, 110, 99).
Aa
White text reads best on this color (5.51:1).
About this color
#566E63 is a medium-dark, muted green. In OKLCH its lightness is 52%, its chroma 0.033 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.034 away. White text reads best on it, at 5.51:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #566E63 |
| RGB | rgb(86, 110, 99) |
| HSL | hsl(153, 12%, 38%) |
| OKLCH | oklch(51.5% 0.033 165.4) |
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 #566E63 | 5.51:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #566E63 | 3.80:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #566E63 text on white | 5.51:1 | AA | Lc 77.6 | Fine for body text |
| #566E63 text on black | 3.80:1 | AA large text | Lc -24.2 | 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
#E7EBE9
oklch(93.6% 0.005 165)
-
Step 200
200
#D4DBD8
oklch(88.5% 0.009 168.7)
-
Step 300
300
#B8C4BE
oklch(80.9% 0.016 164.6)
-
Step 400
400
#92A69D
oklch(70.7% 0.026 166.8)
-
Step 500
500
#779085
oklch(63.1% 0.033 166.8)
-
Step 600
600
#607A6E
oklch(55.5% 0.035 165.3)
-
Step 700
700 (this color)
#566E63
oklch(51.5% 0.033 165.4)
-
Step 800
800
#41544B
oklch(42.7% 0.028 164.6)
-
Step 900
900
#37453F
oklch(37.6% 0.021 167.3)
-
Step 950
950
#202925
oklch(27.1% 0.015 166.5)
#566E63 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) | #6D6B62 | 0.033 |
| Deuteranopia (no green cones) | #696764 | 0.033 |
| Tritanopia (no blue cones) | #516E6B | 0.013 |
| Achromatopsia (no color) | #696969 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566E63
#566E63
oklch(51.5% 0.033 165.4)
- #76606C
#76606C
oklch(51.5% 0.033 344.4)
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 #566E63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.034
- Slate #516572 ΔE 0.043
- Battleship Gray #6C757D ΔE 0.054
- Dark Moss Green #606C38 ΔE 0.058
- Dark Aquamarine #017371 ΔE 0.060
- Deep Turquoise #017374 ΔE 0.061
- Bluegreen #017A79 ΔE 0.063
- Dark Taupe #7F684E ΔE 0.064
Use #566E63 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.