#57656C
Closest named color: Slate (#516572). oklch(49.7% 0.02 229.4), rgb(87, 101, 108).
Aa
White text reads best on this color (6.02:1).
About this color
#57656C is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.012 away. White text reads best on it, at 6.02:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #57656C |
| RGB | rgb(87, 101, 108) |
| HSL | hsl(200, 11%, 38%) |
| OKLCH | oklch(49.7% 0.02 229.4) |
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 #57656C | 6.02:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #57656C | 3.48:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #57656C text on white | 6.02:1 | AA | Lc 80.1 | Fine for body text |
| #57656C text on black | 3.48:1 | AA large text | Lc -21.7 | 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
#F4F5F6
oklch(97% 0.002 247.8)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADC
oklch(88.6% 0.005 228.8)
-
Step 300
300
#BAC2C6
oklch(80.9% 0.011 228.9)
-
Step 400
400
#97A3A9
oklch(70.8% 0.016 229.1)
-
Step 500
500
#7D8C93
oklch(63% 0.02 227.5)
-
Step 600
600
#67767E
oklch(55.6% 0.022 231)
-
Step 700
700 (this color)
#57656C
oklch(49.7% 0.02 229.4)
-
Step 800
800
#465157
oklch(42.8% 0.017 231.6)
-
Step 900
900
#3B4347
oklch(37.7% 0.013 229.2)
-
Step 950
950
#22272A
oklch(26.9% 0.009 234.1)
#57656C 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) | #61646C | 0.015 |
| Deuteranopia (no green cones) | #5E626C | 0.013 |
| Tritanopia (no blue cones) | #516767 | 0.014 |
| Achromatopsia (no color) | #636363 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57656C
#57656C
oklch(49.7% 0.02 229.4)
- #6D5F58
#6D5F58
oklch(49.7% 0.021 48.3)
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 #57656C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.012
- Dim Gray #696969 ΔE 0.031
- Dusty Grape #545775 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.054
- Metallic Blue #4F738E ΔE 0.057
- Battleship Gray #6C757D ΔE 0.060
- Denim #3B638C ΔE 0.062
- Dark Aqua #05696B ΔE 0.068
Use #57656C 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.