#866DEF
Closest named color: Medium Slate Blue (#7B68EE). oklch(62.3% 0.188 288.6), rgb(134, 109, 239).
Aa
Black text reads best on this color (5.44:1).
About this color
#866DEF is a medium-light, vivid purple. In OKLCH its lightness is 62%, its chroma 0.188 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.022 away. Black text reads best on it, at 5.44:1.
| Hue family | Purples |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #866DEF |
| RGB | rgb(134, 109, 239) |
| HSL | hsl(252, 80%, 68%) |
| OKLCH | oklch(62.3% 0.188 288.6) |
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 #866DEF | 3.85:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #866DEF | 5.44:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #866DEF text on white | 3.85:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #866DEF text on black | 5.44:1 | AA | Lc -35.9 | 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
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D7D4FA
oklch(88.4% 0.052 288.9)
-
Step 300
300
#BEB7F9
oklch(80.8% 0.093 289)
-
Step 400
400
#9E8FF6
oklch(70.6% 0.148 288.7)
-
Step 500
500 (this color)
#866DEF
oklch(62.3% 0.188 288.6)
-
Step 600
600
#7453E0
oklch(55.5% 0.204 288.7)
-
Step 700
700
#6243C3
oklch(49.2% 0.189 288.6)
-
Step 800
800
#4F389E
oklch(42.7% 0.158 288.2)
-
Step 900
900
#41327D
oklch(37.7% 0.122 288.3)
-
Step 950
950
#261E49
oklch(27% 0.077 288.7)
#866DEF 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) | #2785F3 | 0.106 |
| Deuteranopia (no green cones) | #297FEC | 0.104 |
| Tritanopia (no blue cones) | #6689A4 | 0.155 |
| Achromatopsia (no color) | #828282 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866DEF
#866DEF
oklch(62.3% 0.188 288.6)
- #8F8C00
#8F8C00
oklch(62.2% 0.134 108.2)
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 #866DEF, closest first.
No curated palette has a color within ΔE 0.04 of #866DEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.022
- Medium Purple #9370DB ΔE 0.039
- Cornflower #6A79F7 ΔE 0.046
- Purpley #8756E4 ΔE 0.051
- Periwinkle #8E82FE ΔE 0.054
- Lighter Purple #A55AF4 ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.065
- Light Urple #B36FF6 ΔE 0.075
Use #866DEF 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.