#576B6E
Closest named color: Slate (#516572). oklch(51.3% 0.024 207.6), rgb(87, 107, 110).
Aa
White text reads best on this color (5.62:1).
About this color
#576B6E is a medium-dark close to neutral grey. In OKLCH its lightness is 51%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.024 away. White text reads best on it, at 5.62:1.
| Hue family | Neutrals |
| Lightness | medium-dark (51%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #576B6E |
| RGB | rgb(87, 107, 110) |
| HSL | hsl(188, 12%, 39%) |
| OKLCH | oklch(51.3% 0.024 207.6) |
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 #576B6E | 5.62:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #576B6E | 3.73:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #576B6E text on white | 5.62:1 | AA | Lc 78.1 | Fine for body text |
| #576B6E text on black | 3.73:1 | AA large text | Lc -23.7 | 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
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADB
oklch(88.4% 0.007 208.8)
-
Step 300
300
#B8C3C4
oklch(80.9% 0.012 203.4)
-
Step 400
400
#94A4A7
oklch(70.7% 0.019 210.2)
-
Step 500
500
#798E91
oklch(63.1% 0.024 207)
-
Step 600
600
#62787B
oklch(55.6% 0.026 206.6)
-
Step 700
700 (this color)
#576B6E
oklch(51.3% 0.024 207.6)
-
Step 800
800
#425255
oklch(42.6% 0.021 210.3)
-
Step 900
900
#384446
oklch(37.7% 0.016 208.8)
-
Step 950
950
#212829
oklch(27% 0.01 207.1)
#576B6E 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) | #68696E | 0.025 |
| Deuteranopia (no green cones) | #63666E | 0.022 |
| Tritanopia (no blue cones) | #506D6C | 0.012 |
| Achromatopsia (no color) | #676767 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #576B6E
#576B6E
oklch(51.3% 0.024 207.6)
- #74625F
#74625F
oklch(51.3% 0.024 29.1)
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 #576B6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- Dim Gray #696969 ΔE 0.026
- Battleship Gray #6C757D ΔE 0.047
- Metallic Blue #4F738E ΔE 0.049
- Deep Turquoise #017374 ΔE 0.063
- Dark Aquamarine #017371 ΔE 0.063
- Deep Aqua #08787F ΔE 0.064
- Battleship Grey #6B7C85 ΔE 0.064
Use #576B6E 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.