#664ade
a balanced, vivid blue · warm · closest name: slateblue
RGB
102, 74, 222
HSL
251°, 69%, 58%
CMYK
54, 67, 0, 13
Luminance
0.1300
Every format
| HEX | #664ade |
| RGB | rgb(102, 74, 222) |
| HSL | hsl(251, 69%, 58%) |
| CMYK | cmyk(54%, 67%, 0%, 13%) |
| LAB | lab(42.8 49.5 -71.7) |
| LCH | lch(42.8 87.2 304.6) |
| OKLCH | oklch(0.528 0.213 285.1) |
Copy-ready code
/* CSS */
color: #664ade;
background-color: #664ade;
/* Tailwind (arbitrary) */
class="text-[#664ade] bg-[#664ade]"
/* SCSS */
$brand: #664ade;
/* SwiftUI */
Color(red: 0.400, green: 0.290, blue: 0.871)
/* Android */
Color.parseColor("#664ade")Accessibility — WCAG contrast
Aa
#664ade on white: 5.83:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664ade on black: 3.60:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green29.0%
Blue87.1%
CMYK percentages
Cyan54.1%
Magenta66.7%
Yellow0.0%
Key (black)12.9%
Color previews
#664ade text on a black background
contrast 3.60:1
Card sample
#664ade text on a white background
contrast 5.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664ade;
Background color
Panel with #664ade background
background-color: #664ade;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664ade;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 74, 222, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 74, 222, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664ade; background: linear-gradient(135deg, #664ade, #C94ADE);