#866FCB
Closest named color: Medium Purple (#9370DB). oklch(60.4% 0.137 293.4), rgb(134, 111, 203).
Aa
Black text reads best on this color (5.14:1).
About this color
#866FCB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 60%, its chroma 0.137 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.032 away. Black text reads best on it, at 5.14:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #866FCB |
| RGB | rgb(134, 111, 203) |
| HSL | hsl(255, 47%, 62%) |
| OKLCH | oklch(60.4% 0.137 293.4) |
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 #866FCB | 4.07:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #866FCB | 5.14:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #866FCB text on white | 4.07:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #866FCB text on black | 5.14:1 | AA | Lc -33.8 | 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
#C2B9E9
oklch(80.9% 0.068 293.4)
-
Step 400
400
#A393DD
oklch(70.6% 0.108 293.4)
-
Step 500
500 (this color)
#866FCB
oklch(60.4% 0.137 293.4)
-
Step 600
600
#795EC1
oklch(55.6% 0.149 293.5)
-
Step 700
700
#664DA7
oklch(49.1% 0.139 293.4)
-
Step 800
800
#534087
oklch(42.8% 0.114 293.3)
-
Step 900
900
#44376C
oklch(37.7% 0.089 292.9)
-
Step 950
950
#28203F
oklch(26.9% 0.057 294.1)
#866FCB 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) | #517FCE | 0.076 |
| Deuteranopia (no green cones) | #547CC9 | 0.072 |
| Tritanopia (no blue cones) | #768093 | 0.111 |
| Achromatopsia (no color) | #7E7E7E | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866FCB
#866FCB
oklch(60.4% 0.137 293.4)
- #828900
#828900
oklch(60.4% 0.135 113.3)
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 #866FCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.032
- Deep Lilac #966EBD ΔE 0.033
- Deep Lavender #8D5EB7 ΔE 0.047
- Amethyst #9B5FC0 ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.061
- Soft Purple #A66FB5 ΔE 0.063
- Dark Lilac #9C6DA5 ΔE 0.068
- Dark Periwinkle #665FD1 ΔE 0.069
Use #866FCB 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.