#566973
Closest named color: Slate (#516572). oklch(50.9% 0.028 230.9), rgb(86, 105, 115).
Aa
White text reads best on this color (5.73:1).
About this color
#566973 is a medium-dark close to neutral grey. In OKLCH its lightness is 51%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.015 away. White text reads best on it, at 5.73:1.
| Hue family | Neutrals |
| Lightness | medium-dark (51%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.66:1 |
| White text | 5.73:1 |
Values
| HEX | #566973 |
| RGB | rgb(86, 105, 115) |
| HSL | hsl(201, 14%, 39%) |
| OKLCH | oklch(50.9% 0.028 230.9) |
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 #566973 | 5.73:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #566973 | 3.66:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #566973 text on white | 5.73:1 | AA | Lc 78.7 | Fine for body text |
| #566973 text on black | 3.66:1 | AA large text | Lc -23.1 | 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
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D4DADD
oklch(88.5% 0.008 228.9)
-
Step 300
300
#B8C2C8
oklch(80.8% 0.014 233.8)
-
Step 400
400
#94A3AC
oklch(70.7% 0.022 234)
-
Step 500
500
#798D97
oklch(63.1% 0.027 229.4)
-
Step 600
600
#627782
oklch(55.6% 0.03 230.8)
-
Step 700
700 (this color)
#566973
oklch(50.9% 0.028 230.9)
-
Step 800
800
#425259
oklch(42.8% 0.023 226.3)
-
Step 900
900
#384449
oklch(37.8% 0.018 225)
-
Step 950
950
#21282B
oklch(27.1% 0.011 225.5)
#566973 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) | #646874 | 0.020 |
| Deuteranopia (no green cones) | #606573 | 0.018 |
| Tritanopia (no blue cones) | #4E6C6C | 0.020 |
| Achromatopsia (no color) | #666666 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566973
#566973
oklch(50.9% 0.028 230.9)
- #736258
#736258
oklch(51% 0.027 52.3)
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 #566973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.015
- Dim Gray #696969 ΔE 0.030
- Metallic Blue #4F738E ΔE 0.044
- Battleship Gray #6C757D ΔE 0.050
- Dusty Grape #545775 ΔE 0.056
- Denim #3B638C ΔE 0.058
- YInMn Blue #415A77 ΔE 0.059
- Dull Blue #49759C ΔE 0.065
Use #566973 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.