#866CC5
Closest named color: Deep Lilac (#966EBD). oklch(59.5% 0.134 295.5), rgb(134, 108, 197).
Aa
Black text reads best on this color (4.96:1).
About this color
#866CC5 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 60%, its chroma 0.134 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.030 away. Black text reads best on it, at 4.96:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #866CC5 |
| RGB | rgb(134, 108, 197) |
| HSL | hsl(258, 43%, 60%) |
| OKLCH | oklch(59.5% 0.134 295.5) |
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 #866CC5 | 4.22:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #866CC5 | 4.96:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #866CC5 text on white | 4.22:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #866CC5 text on black | 4.96:1 | AA | Lc -32.6 | 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 500.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C3B9E7
oklch(80.9% 0.065 294.9)
-
Step 400
400
#A693DB
oklch(70.7% 0.105 295.7)
-
Step 500
500 (this color)
#866CC5
oklch(59.5% 0.134 295.5)
-
Step 600
600
#7B5EBE
oklch(55.6% 0.145 295.2)
-
Step 700
700
#684DA4
oklch(49.1% 0.135 295.3)
-
Step 800
800
#553F85
oklch(42.6% 0.113 295.7)
-
Step 900
900
#46366A
oklch(37.6% 0.088 296.1)
-
Step 950
950
#29203E
oklch(27% 0.055 296.3)
#866CC5 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) | #507CC8 | 0.078 |
| Deuteranopia (no green cones) | #547AC3 | 0.074 |
| Tritanopia (no blue cones) | #787C8F | 0.107 |
| Achromatopsia (no color) | #7B7B7B | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866CC5
#866CC5
oklch(59.5% 0.134 295.5)
- #7C8706
#7C8706
oklch(59.4% 0.133 115.4)
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 #866CC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.030
- Deep Lavender #8D5EB7 ΔE 0.038
- Medium Purple #9370DB ΔE 0.040
- Amethyst #9B5FC0 ΔE 0.044
- Soft Purple #A66FB5 ΔE 0.061
- Dark Lilac #9C6DA5 ΔE 0.062
- Light Indigo #6D5ACF ΔE 0.066
- Dark Periwinkle #665FD1 ΔE 0.067
Use #866CC5 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.