#563F91
Closest named color: Dark Slate Blue (#483D8B). oklch(43.6% 0.13 293.2), rgb(86, 63, 145).
Aa
White text reads best on this color (8.34:1).
About this color
#563F91 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.130 and its hue 293°. 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 8.34:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #563F91 |
| RGB | rgb(86, 63, 145) |
| HSL | hsl(257, 39%, 41%) |
| OKLCH | oklch(43.6% 0.13 293.2) |
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 #563F91 | 8.34:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #563F91 | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #563F91 text on white | 8.34:1 | AAA | Lc 88.5 | Fine for body text |
| #563F91 text on black | 2.51:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F3
oklch(88.4% 0.043 294.4)
-
Step 300
300
#C2B8EE
oklch(80.9% 0.076 293.1)
-
Step 400
400
#A491E5
oklch(70.6% 0.122 293.4)
-
Step 500
500
#8F74DE
oklch(63.2% 0.156 293.2)
-
Step 600
600
#7A5ACB
oklch(55.6% 0.168 293.2)
-
Step 700
700
#6749B0
oklch(49.2% 0.157 293.2)
-
Step 800
800 (this color)
#563F91
oklch(43.6% 0.13 293.2)
-
Step 900
900
#453572
oklch(37.8% 0.101 293)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#563F91 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) | #174F94 | 0.082 |
| Deuteranopia (no green cones) | #1D4C8F | 0.078 |
| Tritanopia (no blue cones) | #475062 | 0.103 |
| Achromatopsia (no color) | #4E4E4E | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #563F91
#563F91
oklch(43.6% 0.13 293.2)
- #525600
#525600
oklch(43.5% 0.097 112.9)
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 #563F91, 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 0.028
- Rebecca Purple #663399 ΔE 0.040
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.067
- Cobalt #1E488F ΔE 0.076
- Dusk Blue #26538D ΔE 0.079
- Denim Blue #3B5B92 ΔE 0.080
Use #563F91 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.