#866CB6
Closest named color: Deep Lilac (#966EBD). oklch(58.7% 0.113 299.1), rgb(134, 108, 182).
Aa
Black text reads best on this color (4.83:1).
About this color
#866CB6 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.113 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.029 away. Black text reads best on it, at 4.83:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #866CB6 |
| RGB | rgb(134, 108, 182) |
| HSL | hsl(261, 34%, 57%) |
| OKLCH | oklch(58.7% 0.113 299.1) |
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 #866CB6 | 4.34:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #866CB6 | 4.83:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #866CB6 text on white | 4.34:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #866CB6 text on black | 4.83:1 | AA | Lc -31.7 | 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 600.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD5EA
oklch(88.4% 0.029 298.8)
-
Step 300
300
#C5BADE
oklch(81% 0.051 299.2)
-
Step 400
400
#A796CD
oklch(70.8% 0.081 298.5)
-
Step 500
500
#927BC0
oklch(63.1% 0.104 298.7)
-
Step 600
600 (this color)
#866CB6
oklch(58.7% 0.113 299.1)
-
Step 700
700
#695294
oklch(49.2% 0.105 298.5)
-
Step 800
800
#564378
oklch(42.7% 0.088 299.2)
-
Step 900
900
#473961
oklch(37.8% 0.069 299.2)
-
Step 950
950
#292239
oklch(27.1% 0.043 297.5)
#866CB6 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) | #5879B9 | 0.069 |
| Deuteranopia (no green cones) | #5D79B4 | 0.065 |
| Tritanopia (no blue cones) | #7D7988 | 0.090 |
| Achromatopsia (no color) | #797979 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866CB6
#866CB6
oklch(58.7% 0.113 299.1)
- #75852E
#75852E
oklch(58.6% 0.113 118.9)
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 #866CB6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.029
- Deep Lavender #8D5EB7 ΔE 0.036
- Dark Lilac #9C6DA5 ΔE 0.046
- Dark Lavender #856798 ΔE 0.046
- Amethyst #9B5FC0 ΔE 0.049
- Faded Purple #916E99 ΔE 0.050
- Soft Purple #A66FB5 ΔE 0.055
- Medium Purple #9370DB ΔE 0.060
Use #866CB6 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.