#8566DB
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.7% 0.172 292.6), rgb(133, 102, 219).
Aa
Black text reads best on this color (4.92:1).
About this color
#8566DB is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.172 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.033 away. Black text reads best on it, at 4.92:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #8566DB |
| RGB | rgb(133, 102, 219) |
| HSL | hsl(256, 62%, 63%) |
| OKLCH | oklch(59.7% 0.172 292.6) |
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 #8566DB | 4.26:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #8566DB | 4.92:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #8566DB text on white | 4.26:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #8566DB text on black | 4.92:1 | AA | Lc -32.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C2B7F3
oklch(80.9% 0.084 292.8)
-
Step 400
400
#A48FED
oklch(70.7% 0.136 292.9)
-
Step 500
500 (this color)
#8566DB
oklch(59.7% 0.172 292.6)
-
Step 600
600
#7A55D5
oklch(55.5% 0.188 292.5)
-
Step 700
700
#6745B8
oklch(49.1% 0.173 292.5)
-
Step 800
800
#543995
oklch(42.6% 0.144 292.8)
-
Step 900
900
#453377
oklch(37.8% 0.112 292.4)
-
Step 950
950
#281E46
oklch(27% 0.072 292.4)
#8566DB 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) | #317CDF | 0.105 |
| Deuteranopia (no green cones) | #3878D8 | 0.100 |
| Tritanopia (no blue cones) | #6F7E97 | 0.138 |
| Achromatopsia (no color) | #7A7A7A | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8566DB
#8566DB
oklch(59.7% 0.172 292.6)
- #818700
#818700
oklch(59.8% 0.133 112.9)
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 #8566DB, closest first.
No curated palette has a color within ΔE 0.04 of #8566DB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.033
- Medium Purple #9370DB ΔE 0.035
- Purpley #8756E4 ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.055
- Amethyst #9B5FC0 ΔE 0.055
- Deep Lavender #8D5EB7 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
Use #8566DB 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.