#866FE1
Closest named color: Medium Purple (#9370DB). oklch(61.7% 0.167 289.9), rgb(134, 111, 225).
Aa
Black text reads best on this color (5.37:1).
About this color
#866FE1 is a medium-dark, vivid purple. In OKLCH its lightness is 62%, its chroma 0.167 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.023 away. Black text reads best on it, at 5.37:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #866FE1 |
| RGB | rgb(134, 111, 225) |
| HSL | hsl(252, 66%, 66%) |
| OKLCH | oklch(61.7% 0.167 289.9) |
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 #866FE1 | 3.90:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #866FE1 | 5.37:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #866FE1 text on white | 3.90:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #866FE1 text on black | 5.37:1 | AA | Lc -35.4 | 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
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F2
oklch(80.8% 0.081 290)
-
Step 400
400
#A091EC
oklch(70.7% 0.131 290.2)
-
Step 500
500 (this color)
#866FE1
oklch(61.7% 0.167 289.9)
-
Step 600
600
#7559D4
oklch(55.6% 0.181 289.7)
-
Step 700
700
#6348B7
oklch(49.1% 0.168 290)
-
Step 800
800
#503C94
oklch(42.7% 0.139 289.7)
-
Step 900
900
#423476
oklch(37.6% 0.109 289.9)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#866FE1 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) | #3F83E5 | 0.091 |
| Deuteranopia (no green cones) | #417EDE | 0.088 |
| Tritanopia (no blue cones) | #6D879E | 0.138 |
| Achromatopsia (no color) | #818181 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866FE1
#866FE1
oklch(61.7% 0.167 289.9)
- #8B8B00
#8B8B00
oklch(61.6% 0.134 109.8)
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 #866FE1, closest first.
No curated palette has a color within ΔE 0.04 of #866FE1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.023
- Medium Slate Blue #7B68EE ΔE 0.033
- Cornflower #6A79F7 ΔE 0.052
- Purpley #8756E4 ΔE 0.056
- Deep Lilac #966EBD ΔE 0.060
- Periwinkle #8E82FE ΔE 0.061
- Amethyst #9B5FC0 ΔE 0.065
- Lavender Blue #8B88F8 ΔE 0.066
Use #866FE1 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.