#566768
Closest named color: Slate (#516572). oklch(50% 0.021 200.9), rgb(86, 103, 104).
Aa
White text reads best on this color (5.93:1).
About this color
#566768 is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.020 away. White text reads best on it, at 5.93:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.53:1 |
| White text | 5.93:1 |
Values
| HEX | #566768 |
| RGB | rgb(86, 103, 104) |
| HSL | hsl(183, 9%, 37%) |
| OKLCH | oklch(50% 0.021 200.9) |
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 #566768 | 5.93:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #566768 | 3.53:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #566768 text on white | 5.93:1 | AA | Lc 79.7 | Fine for body text |
| #566768 text on black | 3.53:1 | AA large text | Lc -22.1 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D5DADA
oklch(88.5% 0.005 197.1)
-
Step 300
300
#BAC3C3
oklch(81% 0.01 197)
-
Step 400
400
#96A4A5
oklch(70.8% 0.016 202)
-
Step 500
500
#7C8D8E
oklch(63% 0.02 201)
-
Step 600
600
#657779
oklch(55.5% 0.022 204.8)
-
Step 700
700 (this color)
#566768
oklch(50% 0.021 200.9)
-
Step 800
800
#445253
oklch(42.7% 0.018 201.8)
-
Step 900
900
#3A4444
oklch(37.8% 0.013 196.6)
-
Step 950
950
#222828
oklch(27.1% 0.009 196.7)
#566768 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) | #646568 | 0.021 |
| Deuteranopia (no green cones) | #616368 | 0.019 |
| Tritanopia (no blue cones) | #516867 | 0.008 |
| Achromatopsia (no color) | #646464 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566768
#566768
oklch(50% 0.021 200.9)
- #6F5F5E
#6F5F5E
oklch(50.1% 0.021 22.1)
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 #566768, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.020
- Dim Gray #696969 ΔE 0.029
- Battleship Gray #6C757D ΔE 0.059
- Dusty Grape #545775 ΔE 0.060
- Metallic Blue #4F738E ΔE 0.060
- YInMn Blue #415A77 ΔE 0.061
- Dark Aqua #05696B ΔE 0.065
- Deep Turquoise #017374 ΔE 0.065
Use #566768 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.