#563A91
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.138 294.7), rgb(86, 58, 145).
Aa
White text reads best on this color (8.71:1).
About this color
#563A91 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.138 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.027 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #563A91 |
| RGB | rgb(86, 58, 145) |
| HSL | hsl(259, 43%, 40%) |
| OKLCH | oklch(42.7% 0.138 294.7) |
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 #563A91 | 8.71:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #563A91 | 2.40:1 | Fails | Lc 14.4 | Not readable |
| #563A91 text on white | 8.71:1 | AAA | Lc 89.5 | Fine for body text |
| #563A91 text on black | 2.40:1 | Fails | Lc -12.7 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C4B7F0
oklch(81% 0.081 295)
-
Step 400
400
#A68FE8
oklch(70.6% 0.129 294.8)
-
Step 500
500
#9271E1
oklch(63.1% 0.164 294.8)
-
Step 600
600
#7D56CF
oklch(55.6% 0.179 294.7)
-
Step 700
700
#6A46B3
oklch(49.2% 0.165 294.8)
-
Step 800
800 (this color)
#563A91
oklch(42.7% 0.138 294.7)
-
Step 900
900
#473374
oklch(37.8% 0.108 294.9)
-
Step 950
950
#291E44
oklch(26.9% 0.069 294.7)
#563A91 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) | #024C94 | 0.094 |
| Deuteranopia (no green cones) | #124A8F | 0.088 |
| Tritanopia (no blue cones) | #474D60 | 0.109 |
| Achromatopsia (no color) | #4B4B4B | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #563A91
#563A91
oklch(42.7% 0.138 294.7)
- #4E5400
#4E5400
oklch(42.6% 0.096 114.4)
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 #563A91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.031
- Rebecca Purple #663399 ΔE 0.035
- Twilight #4E518B ΔE 0.062
- Dusk #4E5481 ΔE 0.078
- Cobalt #1E488F ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.081
- Blue With A Hint Of Purple #533CC6 ΔE 0.086
Use #563A91 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.