#866ACD
Closest named color: Medium Purple (#9370DB). oklch(59.6% 0.148 294.5), rgb(134, 106, 205).
Aa
Black text reads best on this color (4.95:1).
About this color
#866ACD is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.148 and its hue 295°. 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 4.95:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #866ACD |
| RGB | rgb(134, 106, 205) |
| HSL | hsl(257, 50%, 61%) |
| OKLCH | oklch(59.6% 0.148 294.5) |
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 #866ACD | 4.23:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #866ACD | 4.95:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #866ACD text on white | 4.23:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #866ACD text on black | 4.95:1 | 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
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C3B8EB
oklch(80.9% 0.072 294.6)
-
Step 400
400
#A592E1
oklch(70.7% 0.115 294.3)
-
Step 500
500 (this color)
#866ACD
oklch(59.6% 0.148 294.5)
-
Step 600
600
#7B5BC6
oklch(55.6% 0.16 294.4)
-
Step 700
700
#684AAB
oklch(49.1% 0.149 294.5)
-
Step 800
800
#553D8B
oklch(42.7% 0.125 294.7)
-
Step 900
900
#46356F
oklch(37.7% 0.097 294.8)
-
Step 950
950
#292041
oklch(27.2% 0.06 294.6)
#866ACD 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) | #477CD1 | 0.088 |
| Deuteranopia (no green cones) | #4C79CB | 0.083 |
| Tritanopia (no blue cones) | #757D92 | 0.118 |
| Achromatopsia (no color) | #7B7B7B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866ACD
#866ACD
oklch(59.6% 0.148 294.5)
- #7E8700
#7E8700
oklch(59.6% 0.134 114.4)
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 #866ACD, 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 0.040
- Deep Lavender #8D5EB7 ΔE 0.041
- Amethyst #9B5FC0 ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.054
- Light Indigo #6D5ACF ΔE 0.059
- Purpley #8756E4 ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.061
Use #866ACD 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.