#866DCB
Closest named color: Medium Purple (#9370DB). oklch(60% 0.14 294), rgb(134, 109, 203).
Aa
Black text reads best on this color (5.06:1).
About this color
#866DCB is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.140 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.033 away. Black text reads best on it, at 5.06:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #866DCB |
| RGB | rgb(134, 109, 203) |
| HSL | hsl(256, 47%, 61%) |
| OKLCH | oklch(60% 0.14 294) |
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 #866DCB | 4.14:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #866DCB | 5.06:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #866DCB text on white | 4.14:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #866DCB text on black | 5.06:1 | AA | Lc -33.3 | 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 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
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C2B9E9
oklch(80.9% 0.068 293.4)
-
Step 400
400
#A493DE
oklch(70.7% 0.109 293.8)
-
Step 500
500 (this color)
#866DCB
oklch(60% 0.14 294)
-
Step 600
600
#7A5DC2
oklch(55.6% 0.152 294.1)
-
Step 700
700
#674CA8
oklch(49.1% 0.142 294.1)
-
Step 800
800
#543F88
oklch(42.7% 0.117 294.1)
-
Step 900
900
#45366D
oklch(37.7% 0.092 294.1)
-
Step 950
950
#282040
oklch(27% 0.059 293.6)
#866DCB 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) | #4D7DCE | 0.080 |
| Deuteranopia (no green cones) | #517BC9 | 0.076 |
| Tritanopia (no blue cones) | #767F92 | 0.114 |
| Achromatopsia (no color) | #7C7C7C | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866DCB
#866DCB
oklch(60% 0.14 294)
- #808800
#808800
oklch(60% 0.135 113.9)
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 #866DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Deep Lilac #966EBD ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.044
- Amethyst #9B5FC0 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.059
- Soft Purple #A66FB5 ΔE 0.064
- Dark Periwinkle #665FD1 ΔE 0.065
- Light Indigo #6D5ACF ΔE 0.066
Use #866DCB 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.