#663cd3
a balanced, vivid violet · warm · closest name: slateblue
RGB
102, 60, 211
HSL
257°, 63%, 53%
CMYK
52, 72, 0, 17
Luminance
0.1076
Every format
| HEX | #663cd3 |
| RGB | rgb(102, 60, 211) |
| HSL | hsl(257, 63%, 53%) |
| CMYK | cmyk(52%, 72%, 0%, 17%) |
| LAB | lab(39.2 53.8 -71.3) |
| LCH | lch(39.2 89.3 307.0) |
| OKLCH | oklch(0.499 0.216 288.8) |
Copy-ready code
/* CSS */
color: #663cd3;
background-color: #663cd3;
/* Tailwind (arbitrary) */
class="text-[#663cd3] bg-[#663cd3]"
/* SCSS */
$brand: #663cd3;
/* SwiftUI */
Color(red: 0.400, green: 0.235, blue: 0.827)
/* Android */
Color.parseColor("#663cd3")Accessibility — WCAG contrast
Aa
#663cd3 on white: 6.66:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#663cd3 on black: 3.15:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green23.5%
Blue82.7%
CMYK percentages
Cyan51.7%
Magenta71.6%
Yellow0.0%
Key (black)17.3%
Color previews
#663cd3 text on a black background
contrast 3.15:1
Card sample
#663cd3 text on a white background
contrast 6.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #663cd3;
Background color
Panel with #663cd3 background
background-color: #663cd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #663cd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 60, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 60, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #663cd3; background: linear-gradient(135deg, #663cd3, #CB3CD3);