#663ade
a balanced, vivid violet · warm · closest name: slateblue
RGB
102, 58, 222
HSL
256°, 71%, 55%
CMYK
54, 74, 0, 13
Luminance
0.1112
Every format
| HEX | #663ade |
| RGB | rgb(102, 58, 222) |
| HSL | hsl(256, 71%, 55%) |
| CMYK | cmyk(54%, 74%, 0%, 13%) |
| LAB | lab(39.8 57.8 -76.6) |
| LCH | lch(39.8 95.9 307.0) |
| OKLCH | oklch(0.507 0.231 287.3) |
Copy-ready code
/* CSS */
color: #663ade;
background-color: #663ade;
/* Tailwind (arbitrary) */
class="text-[#663ade] bg-[#663ade]"
/* SCSS */
$brand: #663ade;
/* SwiftUI */
Color(red: 0.400, green: 0.227, blue: 0.871)
/* Android */
Color.parseColor("#663ade")Accessibility — WCAG contrast
Aa
#663ade on white: 6.51:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#663ade on black: 3.22:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green22.7%
Blue87.1%
CMYK percentages
Cyan54.1%
Magenta73.9%
Yellow0.0%
Key (black)12.9%
Color previews
#663ade text on a black background
contrast 3.22:1
Card sample
#663ade text on a white background
contrast 6.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #663ade;
Background color
Panel with #663ade background
background-color: #663ade;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #663ade;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 58, 222, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 58, 222, 0.45);
Border & gradient
Gradient panel
border: 3px solid #663ade; background: linear-gradient(135deg, #663ade, #D33ADE);