#866FC9
Closest named color: Deep Lilac (#966EBD). oklch(60.3% 0.134 293.7), rgb(134, 111, 201).
Aa
Black text reads best on this color (5.13:1).
About this color
#866FC9 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 60%, its chroma 0.134 and its hue 294°. 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 5.13:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #866FC9 |
| RGB | rgb(134, 111, 201) |
| HSL | hsl(255, 45%, 61%) |
| OKLCH | oklch(60.3% 0.134 293.7) |
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 #866FC9 | 4.09:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #866FC9 | 5.13:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #866FC9 text on white | 4.09:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #866FC9 text on black | 5.13:1 | AA | Lc -33.7 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C2B9E8
oklch(80.9% 0.066 293.6)
-
Step 400
400
#A494DC
oklch(70.8% 0.105 293.8)
-
Step 500
500 (this color)
#866FC9
oklch(60.3% 0.134 293.7)
-
Step 600
600
#795FBF
oklch(55.6% 0.145 293.6)
-
Step 700
700
#664EA5
oklch(49.2% 0.135 293.5)
-
Step 800
800
#534086
oklch(42.7% 0.113 293.6)
-
Step 900
900
#44376B
oklch(37.7% 0.087 293.3)
-
Step 950
950
#28203F
oklch(26.9% 0.057 294.1)
#866FC9 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) | #527ECC | 0.074 |
| Deuteranopia (no green cones) | #557CC7 | 0.071 |
| Tritanopia (no blue cones) | #768092 | 0.110 |
| Achromatopsia (no color) | #7D7D7D | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866FC9
#866FC9
oklch(60.3% 0.134 293.7)
- #818903
#818903
oklch(60.3% 0.135 113.8)
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 #866FC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.031
- Medium Purple #9370DB ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.046
- Amethyst #9B5FC0 ΔE 0.049
- Soft Purple #A66FB5 ΔE 0.061
- Medium Slate Blue #7B68EE ΔE 0.064
- Dark Lilac #9C6DA5 ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.069
Use #866FC9 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.