#866DD3
Closest named color: Medium Purple (#9370DB). oklch(60.5% 0.151 292.6), rgb(134, 109, 211).
Aa
Black text reads best on this color (5.14:1).
About this color
#866DD3 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.025 away. Black text reads best on it, at 5.14:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #866DD3 |
| RGB | rgb(134, 109, 211) |
| HSL | hsl(255, 54%, 63%) |
| OKLCH | oklch(60.5% 0.151 292.6) |
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 #866DD3 | 4.08:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #866DD3 | 5.14:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #866DD3 text on white | 4.08:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #866DD3 text on black | 5.14:1 | AA | Lc -33.8 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C1B8ED
oklch(80.8% 0.075 292.4)
-
Step 400
400
#A392E4
oklch(70.7% 0.119 292.6)
-
Step 500
500 (this color)
#866DD3
oklch(60.5% 0.151 292.6)
-
Step 600
600
#795BC9
oklch(55.6% 0.164 292.8)
-
Step 700
700
#664AAE
oklch(49.1% 0.153 292.8)
-
Step 800
800
#533E8D
oklch(42.8% 0.126 292.5)
-
Step 900
900
#443571
oklch(37.7% 0.1 292.5)
-
Step 950
950
#282042
oklch(27.1% 0.062 292.6)
#866DD3 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) | #477FD7 | 0.086 |
| Deuteranopia (no green cones) | #4B7CD1 | 0.082 |
| Tritanopia (no blue cones) | #738196 | 0.123 |
| Achromatopsia (no color) | #7E7E7E | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866DD3
#866DD3
oklch(60.5% 0.151 292.6)
- #838900
#838900
oklch(60.5% 0.135 112.8)
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 #866DD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.025
- Deep Lilac #966EBD ΔE 0.043
- Medium Slate Blue #7B68EE ΔE 0.048
- Amethyst #9B5FC0 ΔE 0.051
- Deep Lavender #8D5EB7 ΔE 0.052
- Purpley #8756E4 ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.064
- Light Indigo #6D5ACF ΔE 0.064
Use #866DD3 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.