#866BC0
Closest named color: Deep Lilac (#966EBD). oklch(59.1% 0.129 296.9), rgb(134, 107, 192).
Aa
Black text reads best on this color (4.87:1).
About this color
#866BC0 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.129 and its hue 297°. 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 4.87:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #866BC0 |
| RGB | rgb(134, 107, 192) |
| HSL | hsl(259, 40%, 59%) |
| OKLCH | oklch(59.1% 0.129 296.9) |
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 #866BC0 | 4.30:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #866BC0 | 4.87:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #866BC0 text on white | 4.30:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #866BC0 text on black | 4.87:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5EC
oklch(88.5% 0.032 297.7)
-
Step 300
300
#C4B9E2
oklch(80.8% 0.058 297.4)
-
Step 400
400
#A694D4
oklch(70.6% 0.094 296.8)
-
Step 500
500
#9179C8
oklch(63.1% 0.118 296.9)
-
Step 600
600 (this color)
#866BC0
oklch(59.1% 0.129 296.9)
-
Step 700
700
#69509C
oklch(49.2% 0.12 297)
-
Step 800
800
#55427E
oklch(42.8% 0.098 296.6)
-
Step 900
900
#463865
oklch(37.7% 0.076 296.9)
-
Step 950
950
#29213B
oklch(27% 0.048 297.2)
#866BC0 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) | #517AC3 | 0.077 |
| Deuteranopia (no green cones) | #5679BE | 0.073 |
| Tritanopia (no blue cones) | #7A7A8C | 0.102 |
| Achromatopsia (no color) | #7A7A7A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866BC0
#866BC0
oklch(59.1% 0.129 296.9)
- #798617
#798617
oklch(59% 0.128 116.6)
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 #866BC0, 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 0.043
- Medium Purple #9370DB ΔE 0.047
- Dark Lilac #9C6DA5 ΔE 0.057
- Soft Purple #A66FB5 ΔE 0.059
- Dark Lavender #856798 ΔE 0.061
- Faded Purple #916E99 ΔE 0.066
Use #866BC0 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.