#575B65
Closest named color: Slate (#516572). oklch(47.1% 0.017 268.3), rgb(87, 91, 101).
Aa
White text reads best on this color (6.79:1).
About this color
#575B65 is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 6.79:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #575B65 |
| RGB | rgb(87, 91, 101) |
| HSL | hsl(223, 7%, 37%) |
| OKLCH | oklch(47.1% 0.017 268.3) |
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 #575B65 | 6.79:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #575B65 | 3.08:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #575B65 text on white | 6.79:1 | AA | Lc 83.5 | Fine for body text |
| #575B65 text on black | 3.08:1 | AA large text | Lc -18.5 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9EAEB
oklch(93.7% 0.002 247.8)
-
Step 200
200
#D8D9DC
oklch(88.5% 0.004 271.4)
-
Step 300
300
#BEC0C6
oklch(80.8% 0.009 271.3)
-
Step 400
400
#9DA0A9
oklch(70.6% 0.013 271.2)
-
Step 500
500
#858994
oklch(63% 0.017 269.9)
-
Step 600
600
#6F737E
oklch(55.6% 0.018 269.8)
-
Step 700
700 (this color)
#575B65
oklch(47.1% 0.017 268.3)
-
Step 800
800
#4C4F57
oklch(42.8% 0.014 269.4)
-
Step 900
900
#3F4148
oklch(37.6% 0.012 273.1)
-
Step 950
950
#25262A
oklch(26.9% 0.008 274.7)
#575B65 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) | #585C66 | 0.004 |
| Deuteranopia (no green cones) | #575A65 | 0.003 |
| Tritanopia (no blue cones) | #545D5E | 0.016 |
| Achromatopsia (no color) | #5B5B5B | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575B65
#575B65
oklch(47.1% 0.017 268.3)
- #5F5B51
#5F5B51
oklch(47.2% 0.016 88.8)
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 #575B65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Dusty Grape #545775 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.042
- Dim Gray #696969 ΔE 0.052
- Dusk #4E5481 ΔE 0.058
- Denim #3B638C ΔE 0.067
- Dark Green Blue #1F6357 ΔE 0.074
- Petrol #005F6A ΔE 0.075
Use #575B65 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.