#A663DE
Closest named color: Lighter Purple (#A55AF4). oklch(62.7% 0.186 307), rgb(166, 99, 222).
Aa
Black text reads best on this color (5.46:1).
About this color
#A663DE is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.186 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lighter Purple (#A55AF4), ΔE 0.040 away. Black text reads best on it, at 5.46:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Lighter Purple (#A55AF4) |
| Black text | 5.46:1 |
| White text | 3.84:1 |
Values
| HEX | #A663DE |
| RGB | rgb(166, 99, 222) |
| HSL | hsl(273, 65%, 63%) |
| OKLCH | oklch(62.7% 0.186 307) |
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 #A663DE | 3.84:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #A663DE | 5.46:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #A663DE text on white | 3.84:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #A663DE text on black | 5.46:1 | AA | Lc -36.1 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E2D1F4
oklch(88.5% 0.051 307.2)
-
Step 300
300
#D0B1EF
oklch(80.8% 0.092 307.2)
-
Step 400
400
#B886E7
oklch(70.6% 0.146 306.8)
-
Step 500
500 (this color)
#A663DE
oklch(62.7% 0.186 307)
-
Step 600
600
#9347CD
oklch(55.7% 0.202 307.1)
-
Step 700
700
#7D37B1
oklch(49.1% 0.187 307.1)
-
Step 800
800
#662F8F
oklch(42.8% 0.155 307.4)
-
Step 900
900
#532B73
oklch(37.8% 0.122 307.1)
-
Step 950
950
#301A43
oklch(26.9% 0.077 306.7)
#A663DE 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) | #3880E2 | 0.151 |
| Deuteranopia (no green cones) | #5083DB | 0.136 |
| Tritanopia (no blue cones) | #9D7A97 | 0.134 |
| Achromatopsia (no color) | #828282 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A663DE
#A663DE
oklch(62.7% 0.186 307)
- #6E9900
#6E9900
oklch(62.8% 0.162 126.9)
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 #A663DE, closest first.
No curated palette has a color within ΔE 0.04 of #A663DE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lighter Purple #A55AF4 ΔE 0.040
- Medium Purple #9370DB ΔE 0.041
- Medium Orchid #BA55D3 ΔE 0.045
- Light Urple #B36FF6 ΔE 0.048
- Amethyst #9B5FC0 ΔE 0.049
- Deep Lilac #966EBD ΔE 0.065
- Purpley #8756E4 ΔE 0.065
- Light Purple #BF77F6 ΔE 0.070
Use #A663DE 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.