#866AE1
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.9% 0.174 291.2), rgb(134, 106, 225).
Aa
Black text reads best on this color (5.16:1).
About this color
#866AE1 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.174 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.027 away. Black text reads best on it, at 5.16:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #866AE1 |
| RGB | rgb(134, 106, 225) |
| HSL | hsl(254, 66%, 65%) |
| OKLCH | oklch(60.9% 0.174 291.2) |
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 #866AE1 | 4.06:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #866AE1 | 5.16:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #866AE1 text on white | 4.06:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #866AE1 text on black | 5.16:1 | AA | Lc -34.0 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F7
oklch(88.5% 0.048 291.9)
-
Step 300
300
#C0B7F4
oklch(80.8% 0.086 291.1)
-
Step 400
400
#A290EE
oklch(70.7% 0.135 291.3)
-
Step 500
500 (this color)
#866AE1
oklch(60.9% 0.174 291.2)
-
Step 600
600
#7856D7
oklch(55.6% 0.189 291.1)
-
Step 700
700
#6545BA
oklch(49.1% 0.175 291.1)
-
Step 800
800
#523A97
oklch(42.8% 0.145 290.8)
-
Step 900
900
#443378
oklch(37.8% 0.113 291.4)
-
Step 950
950
#271E46
oklch(26.9% 0.072 291.1)
#866AE1 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) | #3480E5 | 0.102 |
| Deuteranopia (no green cones) | #387BDE | 0.098 |
| Tritanopia (no blue cones) | #6D839B | 0.143 |
| Achromatopsia (no color) | #7E7E7E | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866AE1
#866AE1
oklch(60.9% 0.174 291.2)
- #878900
#878900
oklch(60.8% 0.133 110.8)
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 #866AE1, closest first.
No curated palette has a color within ΔE 0.04 of #866AE1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.027
- Medium Purple #9370DB ΔE 0.029
- Purpley #8756E4 ΔE 0.044
- Cornflower #6A79F7 ΔE 0.057
- Amethyst #9B5FC0 ΔE 0.062
- Light Indigo #6D5ACF ΔE 0.063
- Dark Periwinkle #665FD1 ΔE 0.063
- Deep Lilac #966EBD ΔE 0.064
Use #866AE1 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.