#563666
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.087 313.6), rgb(86, 54, 102).
Aa
White text reads best on this color (9.92:1).
About this color
#563666 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.087 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.066 away. White text reads best on it, at 9.92:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #563666 |
| RGB | rgb(86, 54, 102) |
| HSL | hsl(280, 31%, 31%) |
| OKLCH | oklch(39.2% 0.087 313.6) |
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 #563666 | 9.92:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #563666 | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #563666 text on white | 9.92:1 | AAA | Lc 92.9 | Preferred for body text |
| #563666 text on black | 2.11:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EEE6F3
oklch(93.5% 0.019 312.8)
-
Step 200
200
#E2D3EA
oklch(88.6% 0.035 314.1)
-
Step 300
300
#D0B5DF
oklch(81% 0.065 313.5)
-
Step 400
400
#B88DCF
oklch(70.7% 0.105 313.4)
-
Step 500
500
#A66FC2
oklch(63.1% 0.134 313.5)
-
Step 600
600
#9156AE
oklch(55.6% 0.144 313.5)
-
Step 700
700
#7B4596
oklch(49% 0.136 313.2)
-
Step 800
800
#643A79
oklch(42.7% 0.11 313.4)
-
Step 900
900 (this color)
#563666
oklch(39.2% 0.087 313.6)
-
Step 950
950
#301E39
oklch(27.1% 0.054 313.8)
#563666 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) | #2D4168 | 0.071 |
| Deuteranopia (no green cones) | #354465 | 0.065 |
| Tritanopia (no blue cones) | #553D49 | 0.059 |
| Achromatopsia (no color) | #434343 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #563666
#563666
oklch(39.2% 0.087 313.6)
- #324F1A
#324F1A
oklch(39.2% 0.087 133.2)
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 #563666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.066
- Grape Purple #5D1451 ΔE 0.076
- Purple Brown #673A3F ΔE 0.079
- Blueberry #464196 ΔE 0.085
- Dusk #4E5481 ΔE 0.086
- Twilight #4E518B ΔE 0.086
- Dark Grey Blue #29465B ΔE 0.087
- Brownish Purple #76424E ΔE 0.089
Use #563666 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.