#866BC5
Closest named color: Deep Lilac (#966EBD). oklch(59.3% 0.135 295.8), rgb(134, 107, 197).
Aa
Black text reads best on this color (4.92:1).
About this color
#866BC5 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.135 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 0.031 away. Black text reads best on it, at 4.92:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #866BC5 |
| RGB | rgb(134, 107, 197) |
| HSL | hsl(258, 44%, 60%) |
| OKLCH | oklch(59.3% 0.135 295.8) |
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 #866BC5 | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #866BC5 | 4.92:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #866BC5 text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #866BC5 text on black | 4.92:1 | AA | Lc -32.3 | 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
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EE
oklch(88.5% 0.034 294.9)
-
Step 300
300
#C3B9E4
oklch(80.8% 0.061 295.7)
-
Step 400
400
#A694D7
oklch(70.7% 0.098 296.1)
-
Step 500
500
#9078CC
oklch(63% 0.125 295.8)
-
Step 600
600 (this color)
#866BC5
oklch(59.3% 0.135 295.8)
-
Step 700
700
#684F9F
oklch(49.2% 0.125 295.9)
-
Step 800
800
#554181
oklch(42.8% 0.104 296.1)
-
Step 900
900
#463768
oklch(37.7% 0.083 296.3)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#866BC5 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) | #4E7BC8 | 0.081 |
| Deuteranopia (no green cones) | #5379C3 | 0.075 |
| Tritanopia (no blue cones) | #787C8E | 0.110 |
| Achromatopsia (no color) | #7A7A7A | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866BC5
#866BC5
oklch(59.3% 0.135 295.8)
- #7B8700
#7B8700
oklch(59.3% 0.135 115.9)
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 #866BC5, 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 0.036
- Medium Purple #9370DB ΔE 0.041
- Amethyst #9B5FC0 ΔE 0.043
- Soft Purple #A66FB5 ΔE 0.062
- Dark Lilac #9C6DA5 ΔE 0.063
- Light Indigo #6D5ACF ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.065
Use #866BC5 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.