#A663C2
Closest named color: Amethyst (#9B5FC0). oklch(61.2% 0.154 315.2), rgb(166, 99, 194).
Aa
Black text reads best on this color (5.18:1).
About this color
#A663C2 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.154 and its hue 315°. 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 5.18:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #A663C2 |
| RGB | rgb(166, 99, 194) |
| HSL | hsl(282, 44%, 57%) |
| OKLCH | oklch(61.2% 0.154 315.2) |
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 #A663C2 | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #A663C2 | 5.18:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #A663C2 text on white | 4.05:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #A663C2 text on black | 5.18:1 | AA | Lc -34.2 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E4D1ED
oklch(88.5% 0.043 315)
-
Step 300
300
#D3B2E2
oklch(80.8% 0.075 315.2)
-
Step 400
400
#BD89D4
oklch(70.8% 0.12 315.1)
-
Step 500
500 (this color)
#A663C2
oklch(61.2% 0.154 315.2)
-
Step 600
600
#974EB5
oklch(55.6% 0.167 315)
-
Step 700
700
#813E9C
oklch(49.1% 0.156 315.1)
-
Step 800
800
#69347E
oklch(42.7% 0.129 315.4)
-
Step 900
900
#552E65
oklch(37.6% 0.1 315.3)
-
Step 950
950
#321C3B
oklch(27% 0.062 315.5)
#A663C2 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) | #4F7AC5 | 0.133 |
| Deuteranopia (no green cones) | #6380BF | 0.119 |
| Tritanopia (no blue cones) | #A47189 | 0.103 |
| Achromatopsia (no color) | #7E7E7E | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A663C2
#A663C2
oklch(61.2% 0.154 315.2)
- #57972C
#57972C
oklch(61.1% 0.154 135.3)
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 #A663C2, 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 0.037
- Soft Purple #A66FB5 ΔE 0.039
- Deep Lavender #8D5EB7 ΔE 0.049
- Medium Orchid #BA55D3 ΔE 0.052
- Medium Purple #9370DB ΔE 0.053
- Dark Lilac #9C6DA5 ΔE 0.058
- Wisteria #A87DC2 ΔE 0.064
Use #A663C2 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.