#63585B
Closest named color: Slate (#516572). oklch(47.2% 0.015 359.3), rgb(99, 88, 91).
Aa
White text reads best on this color (6.82:1).
About this color
#63585B is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.048 away. White text reads best on it, at 6.82:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #63585B |
| RGB | rgb(99, 88, 91) |
| HSL | hsl(344, 6%, 37%) |
| OKLCH | oklch(47.2% 0.015 359.3) |
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 #63585B | 6.82:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #63585B | 3.07:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #63585B text on white | 6.82:1 | AA | Lc 83.6 | Fine for body text |
| #63585B text on black | 3.07:1 | AA large text | Lc -18.4 | 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
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#EBE9EA
oklch(93.6% 0.003 345.2)
-
Step 200
200
#DBD8D9
oklch(88.5% 0.004 354.7)
-
Step 300
300
#C5BFC0
oklch(81% 0.007 5.7)
-
Step 400
400
#A79EA0
oklch(70.7% 0.011 2.1)
-
Step 500
500
#928689
oklch(63.2% 0.015 0.5)
-
Step 600
600
#7C7073
oklch(55.7% 0.016 0.6)
-
Step 700
700 (this color)
#63585B
oklch(47.2% 0.015 359.3)
-
Step 800
800
#554C4F
oklch(42.6% 0.013 355.4)
-
Step 900
900
#463F41
oklch(37.5% 0.01 358.3)
-
Step 950
950
#292526
oklch(26.9% 0.006 0.5)
#63585B 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) | #595A5B | 0.017 |
| Deuteranopia (no green cones) | #5C5B5B | 0.014 |
| Tritanopia (no blue cones) | #655859 | 0.004 |
| Achromatopsia (no color) | #5B5B5B | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63585B
#63585B
oklch(47.2% 0.015 359.3)
- #535E5B
#535E5B
oklch(47.1% 0.014 177.5)
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 #63585B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.048
- Dusty Grape #545775 ΔE 0.049
- Dim Gray #696969 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.064
- Brownish Purple #76424E ΔE 0.064
- Dark Mauve #874C62 ΔE 0.072
- Dusk #4E5481 ΔE 0.074
- Dark Taupe #7F684E ΔE 0.076
Use #63585B 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.