#57555F
Closest named color: Dusty Grape (#545775). oklch(45.5% 0.016 294.9), rgb(87, 85, 95).
Aa
White text reads best on this color (7.31:1).
About this color
#57555F is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.035 away. White text reads best on it, at 7.31:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.86:1 |
| White text | 7.31:1 |
Values
| HEX | #57555F |
| RGB | rgb(87, 85, 95) |
| HSL | hsl(252, 6%, 35%) |
| OKLCH | oklch(45.5% 0.016 294.9) |
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 #57555F | 7.31:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #57555F | 2.86:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #57555F text on white | 7.31:1 | AAA | Lc 85.4 | Fine for body text |
| #57555F text on black | 2.86:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#EAE9EB
oklch(93.5% 0.003 308.4)
-
Step 200
200
#D9D8DC
oklch(88.4% 0.006 297.7)
-
Step 300
300
#C1BFC6
oklch(80.8% 0.01 299.2)
-
Step 400
400
#A19FA9
oklch(70.7% 0.015 295.2)
-
Step 500
500
#8A8794
oklch(63% 0.02 296.4)
-
Step 600
600
#74717F
oklch(55.6% 0.022 295.5)
-
Step 700
700
#615F6B
oklch(49.2% 0.019 293.3)
-
Step 800
800 (this color)
#57555F
oklch(45.5% 0.016 294.9)
-
Step 900
900
#424048
oklch(37.6% 0.014 297.2)
-
Step 950
950
#27262A
oklch(27.1% 0.007 297.3)
#57555F 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) | #53565F | 0.007 |
| Deuteranopia (no green cones) | #53565F | 0.007 |
| Tritanopia (no blue cones) | #565658 | 0.013 |
| Achromatopsia (no color) | #565656 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57555F
#57555F
oklch(45.5% 0.016 294.9)
- #56584E
#56584E
oklch(45.5% 0.016 116.2)
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 #57555F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.035
- YInMn Blue #415A77 ΔE 0.046
- Slate #516572 ΔE 0.049
- Dusk #4E5481 ΔE 0.059
- Dark Slate Gray #2F4F4F ΔE 0.068
- Dim Gray #696969 ΔE 0.068
- Brownish Purple #76424E ΔE 0.070
- Denim #3B638C ΔE 0.077
Use #57555F 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.