#563B6B
Closest named color: Dark Slate Blue (#483D8B). oklch(40.4% 0.084 309), rgb(86, 59, 107).
Aa
White text reads best on this color (9.40:1).
About this color
#563B6B is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.059 away. White text reads best on it, at 9.40:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #563B6B |
| RGB | rgb(86, 59, 107) |
| HSL | hsl(274, 29%, 33%) |
| OKLCH | oklch(40.4% 0.084 309) |
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 #563B6B | 9.40:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #563B6B | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #563B6B text on white | 9.40:1 | AAA | Lc 91.6 | Preferred for body text |
| #563B6B text on black | 2.23:1 | Fails | Lc -10.8 | Not readable |
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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE7F1
oklch(93.5% 0.014 308.3)
-
Step 200
200
#DED5E7
oklch(88.6% 0.026 308.1)
-
Step 300
300
#CAB8D9
oklch(80.8% 0.05 309.7)
-
Step 400
400
#AF93C6
oklch(70.6% 0.079 309.3)
-
Step 500
500
#9B78B8
oklch(63.1% 0.101 308.8)
-
Step 600
600
#8660A4
oklch(55.6% 0.11 308.9)
-
Step 700
700
#714F8C
oklch(49% 0.102 308.7)
-
Step 800
800 (this color)
#563B6B
oklch(40.4% 0.084 309)
-
Step 900
900
#4C375C
oklch(37.6% 0.067 309.5)
-
Step 950
950
#2C2136
oklch(27% 0.041 307.8)
#563B6B 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) | #30456D | 0.064 |
| Deuteranopia (no green cones) | #37476A | 0.059 |
| Tritanopia (no blue cones) | #53424E | 0.059 |
| Achromatopsia (no color) | #464646 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #563B6B
#563B6B
oklch(40.4% 0.084 309)
- #3A511B
#3A511B
oklch(40.3% 0.084 129.1)
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 #563B6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.059
- Dusk #4E5481 ΔE 0.072
- Twilight #4E518B ΔE 0.072
- Blueberry #464196 ΔE 0.076
- Dusty Grape #545775 ΔE 0.078
- Purple Brown #673A3F ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.083
- Rebecca Purple #663399 ΔE 0.085
Use #563B6B 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.