#A663BF
Closest named color: Amethyst (#9B5FC0). oklch(61% 0.151 316.2), rgb(166, 99, 191).
Aa
Black text reads best on this color (5.15:1).
About this color
#A663BF is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 316°. 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 5.15:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #A663BF |
| RGB | rgb(166, 99, 191) |
| HSL | hsl(284, 42%, 57%) |
| OKLCH | oklch(61% 0.151 316.2) |
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 #A663BF | 4.07:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #A663BF | 5.15:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #A663BF text on white | 4.07:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #A663BF text on black | 5.15:1 | AA | Lc -34.0 | 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
#E4D1EC
oklch(88.4% 0.042 316)
-
Step 300
300
#D4B2E1
oklch(80.8% 0.075 316.6)
-
Step 400
400
#BE89D2
oklch(70.8% 0.118 316.5)
-
Step 500
500 (this color)
#A663BF
oklch(61% 0.151 316.2)
-
Step 600
600
#984FB2
oklch(55.7% 0.163 316.4)
-
Step 700
700
#813F99
oklch(49.1% 0.151 316.1)
-
Step 800
800
#69347C
oklch(42.6% 0.126 316.3)
-
Step 900
900
#562F64
oklch(37.8% 0.098 316.5)
-
Step 950
950
#321C3B
oklch(27% 0.062 315.5)
#A663BF 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) | #517AC2 | 0.131 |
| Deuteranopia (no green cones) | #6480BC | 0.119 |
| Tritanopia (no blue cones) | #A57088 | 0.099 |
| Achromatopsia (no color) | #7E7E7E | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A663BF
#A663BF
oklch(61% 0.151 316.2)
- #569731
#569731
oklch(61.1% 0.151 136.2)
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 #A663BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.023
- Soft Purple #A66FB5 ΔE 0.036
- Deep Lilac #966EBD ΔE 0.036
- Deep Lavender #8D5EB7 ΔE 0.048
- Dark Lilac #9C6DA5 ΔE 0.054
- Medium Orchid #BA55D3 ΔE 0.055
- Medium Purple #9370DB ΔE 0.056
- Wisteria #A87DC2 ΔE 0.063
Use #A663BF 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.