#A366C4
Closest named color: Amethyst (#9B5FC0). oklch(61.4% 0.15 312.7), rgb(163, 102, 196).
Aa
Black text reads best on this color (5.25:1).
About this color
#A366C4 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.150 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.023 away. Black text reads best on it, at 5.25:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #A366C4 |
| RGB | rgb(163, 102, 196) |
| HSL | hsl(279, 44%, 58%) |
| OKLCH | oklch(61.4% 0.15 312.7) |
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 #A366C4 | 3.99:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #A366C4 | 5.25:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #A366C4 text on white | 3.99:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #A366C4 text on black | 5.25:1 | AA | Lc -34.6 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E3D2ED
oklch(88.6% 0.041 313.2)
-
Step 300
300
#D1B3E3
oklch(80.8% 0.074 312.7)
-
Step 400
400
#BA8AD5
oklch(70.7% 0.118 312.8)
-
Step 500
500 (this color)
#A366C4
oklch(61.4% 0.15 312.7)
-
Step 600
600
#9351B6
oklch(55.6% 0.162 312.5)
-
Step 700
700
#7E419D
oklch(49.2% 0.151 312.8)
-
Step 800
800
#66367F
oklch(42.7% 0.125 312.6)
-
Step 900
900
#533066
oklch(37.7% 0.097 312.5)
-
Step 950
950
#311C3C
oklch(27% 0.063 313.1)
#A366C4 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) | #517CC7 | 0.125 |
| Deuteranopia (no green cones) | #6281C1 | 0.113 |
| Tritanopia (no blue cones) | #A0758C | 0.104 |
| Achromatopsia (no color) | #7F7F7F | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A366C4
#A366C4
oklch(61.4% 0.15 312.7)
- #60962A
#60962A
oklch(61.3% 0.149 132.5)
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 #A366C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.023
- Deep Lilac #966EBD ΔE 0.031
- Soft Purple #A66FB5 ΔE 0.036
- Medium Purple #9370DB ΔE 0.045
- Deep Lavender #8D5EB7 ΔE 0.048
- Dark Lilac #9C6DA5 ΔE 0.056
- Medium Orchid #BA55D3 ΔE 0.057
- Wisteria #A87DC2 ΔE 0.059
Use #A366C4 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.