#63606B
Closest named color: Slate (#516572). oklch(49.6% 0.018 298.2), rgb(99, 96, 107).
Aa
White text reads best on this color (6.14:1).
About this color
#63606B is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.028 away. White text reads best on it, at 6.14:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #63606B |
| RGB | rgb(99, 96, 107) |
| HSL | hsl(256, 5%, 40%) |
| OKLCH | oklch(49.6% 0.018 298.2) |
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 #63606B | 6.14:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #63606B | 3.41:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #63606B text on white | 6.14:1 | AA | Lc 80.7 | Fine for body text |
| #63606B text on black | 3.41:1 | AA large text | Lc -21.1 | 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
#EAE9EB
oklch(93.5% 0.003 308.4)
-
Step 200
200
#D9D8DC
oklch(88.4% 0.006 297.7)
-
Step 300
300
#C1BFC5
oklch(80.8% 0.009 301.3)
-
Step 400
400
#A19FA8
oklch(70.7% 0.013 296.2)
-
Step 500
500
#8A8793
oklch(63% 0.018 297.3)
-
Step 600
600
#74717D
oklch(55.5% 0.019 297.2)
-
Step 700
700 (this color)
#63606B
oklch(49.6% 0.018 298.2)
-
Step 800
800
#504D56
oklch(42.6% 0.015 300.9)
-
Step 900
900
#424047
oklch(37.6% 0.012 298.9)
-
Step 950
950
#27262A
oklch(27.1% 0.007 297.3)
#63606B 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) | #5E626C | 0.009 |
| Deuteranopia (no green cones) | #5E616B | 0.008 |
| Tritanopia (no blue cones) | #626164 | 0.013 |
| Achromatopsia (no color) | #616161 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63606B
#63606B
oklch(49.6% 0.018 298.2)
- #616458
#616458
oklch(49.7% 0.019 118.5)
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 #63606B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.028
- Dim Gray #696969 ΔE 0.031
- Dusty Grape #545775 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.058
- Battleship Gray #6C757D ΔE 0.064
- Dusk #4E5481 ΔE 0.067
- Metallic Blue #4F738E ΔE 0.067
- Dull Purple #84597E ΔE 0.069
Use #63606B 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.