#8366EA
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.5% 0.191 289.6), rgb(131, 102, 234).
Aa
Black text reads best on this color (5.05:1).
About this color
#8366EA is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.191 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.014 away. Black text reads best on it, at 5.05:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.191) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #8366EA |
| RGB | rgb(131, 102, 234) |
| HSL | hsl(253, 76%, 66%) |
| OKLCH | oklch(60.5% 0.191 289.6) |
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 #8366EA | 4.15:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #8366EA | 5.05:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #8366EA text on white | 4.15:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #8366EA text on black | 5.05:1 | AA | Lc -33.4 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4FA
oklch(88.5% 0.052 290.1)
-
Step 300
300
#BFB7F9
oklch(80.9% 0.093 289.7)
-
Step 400
400
#A08EF7
oklch(70.7% 0.151 289.9)
-
Step 500
500 (this color)
#8366EA
oklch(60.5% 0.191 289.6)
-
Step 600
600
#7652E2
oklch(55.7% 0.208 289.4)
-
Step 700
700
#6441C4
oklch(49.2% 0.193 289.7)
-
Step 800
800
#51379E
oklch(42.7% 0.159 289.6)
-
Step 900
900
#42317E
oklch(37.7% 0.125 289.2)
-
Step 950
950
#271D4A
oklch(27% 0.08 290.2)
#8366EA 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) | #127FEE | 0.114 |
| Deuteranopia (no green cones) | #1A79E7 | 0.111 |
| Tritanopia (no blue cones) | #64839E | 0.157 |
| Achromatopsia (no color) | #7C7C7C | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8366EA
#8366EA
oklch(60.5% 0.191 289.6)
- #888700
#888700
oklch(60.4% 0.131 109.2)
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 #8366EA, closest first.
No curated palette has a color within ΔE 0.04 of #8366EA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.014
- Purpley #8756E4 ΔE 0.035
- Medium Purple #9370DB ΔE 0.045
- Cornflower #6A79F7 ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.061
- Lighter Purple #A55AF4 ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Slate Blue #6A5ACD ΔE 0.066
Use #8366EA 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.