#A663DA
Closest named color: Medium Purple (#9370DB). oklch(62.5% 0.181 308), rgb(166, 99, 218).
Aa
Black text reads best on this color (5.41:1).
About this color
#A663DA is a medium-light, vivid purple. In OKLCH its lightness is 62%, its chroma 0.181 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.041 away. Black text reads best on it, at 5.41:1.
| Hue family | Purples |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #A663DA |
| RGB | rgb(166, 99, 218) |
| HSL | hsl(274, 62%, 62%) |
| OKLCH | oklch(62.5% 0.181 308) |
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 #A663DA | 3.87:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #A663DA | 5.41:1 | AA | Lc 38.2 | Non-text elements, placeholder text |
| #A663DA text on white | 3.87:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #A663DA text on black | 5.41:1 | AA | Lc -35.8 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E2D1F3
oklch(88.5% 0.049 307.8)
-
Step 300
300
#D0B2ED
oklch(80.9% 0.088 307.6)
-
Step 400
400
#B987E4
oklch(70.7% 0.141 307.9)
-
Step 500
500 (this color)
#A663DA
oklch(62.5% 0.181 308)
-
Step 600
600
#9348C9
oklch(55.5% 0.196 308)
-
Step 700
700
#7E38AE
oklch(49.1% 0.183 308.3)
-
Step 800
800
#66308D
oklch(42.7% 0.151 308)
-
Step 900
900
#532C71
oklch(37.8% 0.118 307.8)
-
Step 950
950
#311A42
oklch(27% 0.076 308.7)
#A663DA 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) | #3C7FDE | 0.148 |
| Deuteranopia (no green cones) | #5482D7 | 0.132 |
| Tritanopia (no blue cones) | #9E7995 | 0.130 |
| Achromatopsia (no color) | #818181 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A663DA
#A663DA
oklch(62.5% 0.181 308)
- #6A9900
#6A9900
oklch(62.5% 0.164 128.2)
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 #A663DA, closest first.
No curated palette has a color within ΔE 0.04 of #A663DA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.041
- Medium Orchid #BA55D3 ΔE 0.043
- Amethyst #9B5FC0 ΔE 0.044
- Lighter Purple #A55AF4 ΔE 0.045
- Light Urple #B36FF6 ΔE 0.052
- Deep Lilac #966EBD ΔE 0.060
- Purpley #8756E4 ΔE 0.067
- Soft Purple #A66FB5 ΔE 0.068
Use #A663DA 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.