#5B6057
Closest named color: Slate (#516572). oklch(48.2% 0.015 131), rgb(91, 96, 87).
Aa
White text reads best on this color (6.45:1).
About this color
#5B6057 is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.041 away. White text reads best on it, at 6.45:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #5B6057 |
| RGB | rgb(91, 96, 87) |
| HSL | hsl(93, 5%, 36%) |
| OKLCH | oklch(48.2% 0.015 131) |
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 #5B6057 | 6.45:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #5B6057 | 3.25:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #5B6057 text on white | 6.45:1 | AA | Lc 82.0 | Fine for body text |
| #5B6057 text on black | 3.25:1 | AA large text | Lc -19.8 | 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
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#E9EAE9
oklch(93.6% 0.002 145.6)
-
Step 200
200
#D8DAD7
oklch(88.6% 0.005 134.9)
-
Step 300
300
#BFC2BD
oklch(81% 0.008 132.4)
-
Step 400
400
#9EA29B
oklch(70.7% 0.011 131.4)
-
Step 500
500
#868B82
oklch(63% 0.014 130.9)
-
Step 600
600
#70756B
oklch(55.5% 0.016 128.8)
-
Step 700
700 (this color)
#5B6057
oklch(48.2% 0.015 131)
-
Step 800
800
#4C5049
oklch(42.5% 0.012 131.5)
-
Step 900
900
#40433D
oklch(37.8% 0.011 128.8)
-
Step 950
950
#252724
oklch(27% 0.006 134.9)
#5B6057 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) | #615F57 | 0.010 |
| Deuteranopia (no green cones) | #605E57 | 0.009 |
| Tritanopia (no blue cones) | #5B5F5D | 0.011 |
| Achromatopsia (no color) | #5E5E5E | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B6057
#5B6057
oklch(48.2% 0.015 131)
- #615C65
#615C65
oklch(48.3% 0.015 310.4)
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 #5B6057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.041
- Dim Gray #696969 ΔE 0.042
- Dusty Grape #545775 ΔE 0.064
- Dark Moss Green #606C38 ΔE 0.067
- Dark Taupe #7F684E ΔE 0.067
- Dark Green Blue #1F6357 ΔE 0.067
- YInMn Blue #415A77 ΔE 0.069
- Dark Aqua #05696B ΔE 0.075
Use #5B6057 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.