#566464
Closest named color: Slate (#516572). oklch(49.1% 0.017 196.6), rgb(86, 100, 100).
Aa
White text reads best on this color (6.17:1).
About this color
#566464 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.022 away. White text reads best on it, at 6.17:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #566464 |
| RGB | rgb(86, 100, 100) |
| HSL | hsl(180, 8%, 36%) |
| OKLCH | oklch(49.1% 0.017 196.6) |
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 #566464 | 6.17:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #566464 | 3.40:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #566464 text on white | 6.17:1 | AA | Lc 80.8 | Fine for body text |
| #566464 text on black | 3.40:1 | AA large text | Lc -21.0 | 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
#F5F6F6
oklch(97.2% 0.001 197.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BBC2C2
oklch(80.9% 0.008 197)
-
Step 400
400
#98A3A3
oklch(70.7% 0.013 196.9)
-
Step 500
500
#7E8D8D
oklch(63.1% 0.017 196.7)
-
Step 600
600
#677777
oklch(55.6% 0.019 196.6)
-
Step 700
700 (this color)
#566464
oklch(49.1% 0.017 196.6)
-
Step 800
800
#465252
oklch(42.8% 0.015 196.6)
-
Step 900
900
#3B4343
oklch(37.6% 0.011 196.7)
-
Step 950
950
#232828
oklch(27.2% 0.007 196.7)
#566464 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) | #626364 | 0.018 |
| Deuteranopia (no green cones) | #5F6064 | 0.017 |
| Tritanopia (no blue cones) | #526564 | 0.006 |
| Achromatopsia (no color) | #616161 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566464
#566464
oklch(49.1% 0.017 196.6)
- #6A5D5D
#6A5D5D
oklch(49.1% 0.017 17.7)
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 #566464, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.022
- Dim Gray #696969 ΔE 0.034
- Dusty Grape #545775 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.058
- Dark Aqua #05696B ΔE 0.065
- Dark Green Blue #1F6357 ΔE 0.066
- Battleship Gray #6C757D ΔE 0.068
- Metallic Blue #4F738E ΔE 0.068
Use #566464 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.