#866DB3
Closest named color: Deep Lilac (#966EBD). oklch(58.7% 0.108 299.5), rgb(134, 109, 179).
Aa
Black text reads best on this color (4.85:1).
About this color
#866DB3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.108 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.031 away. Black text reads best on it, at 4.85:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #866DB3 |
| RGB | rgb(134, 109, 179) |
| HSL | hsl(261, 32%, 56%) |
| OKLCH | oklch(58.7% 0.108 299.5) |
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 #866DB3 | 4.32:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #866DB3 | 4.85:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #866DB3 text on white | 4.32:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #866DB3 text on black | 4.85:1 | AA | Lc -31.8 | 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 600.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E9
oklch(88.6% 0.026 297.9)
-
Step 300
300
#C5BADC
oklch(80.9% 0.049 300.1)
-
Step 400
400
#A796CA
oklch(70.6% 0.077 299.4)
-
Step 500
500
#927CBD
oklch(63.2% 0.098 299.1)
-
Step 600
600 (this color)
#866DB3
oklch(58.7% 0.108 299.5)
-
Step 700
700
#695291
oklch(49% 0.101 299.5)
-
Step 800
800
#564476
oklch(42.8% 0.083 299.5)
-
Step 900
900
#47395F
oklch(37.7% 0.065 300.2)
-
Step 950
950
#292238
oklch(27% 0.041 298.2)
#866DB3 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) | #5B79B6 | 0.065 |
| Deuteranopia (no green cones) | #6079B1 | 0.061 |
| Tritanopia (no blue cones) | #7E7987 | 0.086 |
| Achromatopsia (no color) | #797979 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866DB3
#866DB3
oklch(58.7% 0.108 299.5)
- #758535
#758535
oklch(58.6% 0.107 119.3)
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 #866DB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.031
- Deep Lavender #8D5EB7 ΔE 0.040
- Dark Lavender #856798 ΔE 0.042
- Dark Lilac #9C6DA5 ΔE 0.042
- Faded Purple #916E99 ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.053
- Soft Purple #A66FB5 ΔE 0.054
- Grey Purple #826D8C ΔE 0.062
Use #866DB3 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.