#866BB9
Closest named color: Deep Lilac (#966EBD). oklch(58.7% 0.119 298.6), rgb(134, 107, 185).
Aa
Black text reads best on this color (4.81:1).
About this color
#866BB9 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.119 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 4.81:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.81:1 |
| White text | 4.35:1 |
Values
| HEX | #866BB9 |
| RGB | rgb(134, 107, 185) |
| HSL | hsl(261, 36%, 57%) |
| OKLCH | oklch(58.7% 0.119 298.6) |
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 #866BB9 | 4.35:1 | AA large text | Lc -75.6 | Fine for body text |
| Black text on #866BB9 | 4.81:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #866BB9 text on white | 4.35:1 | AA large text | Lc 70.1 | Content text, not long reading |
| #866BB9 text on black | 4.81:1 | AA | Lc -31.6 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD5EB
oklch(88.4% 0.031 298.2)
-
Step 300
300
#C5BADF
oklch(81% 0.053 298.8)
-
Step 400
400
#A795CF
oklch(70.7% 0.085 298.4)
-
Step 500
500
#927AC3
oklch(63.1% 0.11 298.3)
-
Step 600
600 (this color)
#866BB9
oklch(58.7% 0.119 298.6)
-
Step 700
700
#695196
oklch(49.1% 0.11 298.3)
-
Step 800
800
#56427A
oklch(42.6% 0.092 298.9)
-
Step 900
900
#473862
oklch(37.6% 0.072 299.4)
-
Step 950
950
#29213A
oklch(26.9% 0.047 297.9)
#866BB9 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) | #5579BC | 0.073 |
| Deuteranopia (no green cones) | #5B78B7 | 0.067 |
| Tritanopia (no blue cones) | #7C7989 | 0.095 |
| Achromatopsia (no color) | #797979 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866BB9
#866BB9
oklch(58.7% 0.119 298.6)
- #758627
#758627
oklch(58.7% 0.12 119.1)
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 #866BB9, 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 0.033
- Amethyst #9B5FC0 ΔE 0.046
- Dark Lilac #9C6DA5 ΔE 0.050
- Dark Lavender #856798 ΔE 0.050
- Faded Purple #916E99 ΔE 0.056
- Medium Purple #9370DB ΔE 0.056
- Soft Purple #A66FB5 ΔE 0.056
Use #866BB9 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.