#664fd2
a balanced, vivid blue · warm · closest name: slateblue
RGB
102, 79, 210
HSL
251°, 59%, 57%
CMYK
51, 62, 0, 18
Luminance
0.1307
Every format
| HEX | #664fd2 |
| RGB | rgb(102, 79, 210) |
| HSL | hsl(251, 59%, 57%) |
| CMYK | cmyk(51%, 62%, 0%, 18%) |
| LAB | lab(42.9 43.2 -64.7) |
| LCH | lch(42.9 77.8 303.7) |
| OKLCH | oklch(0.526 0.193 285.7) |
Copy-ready code
/* CSS */
color: #664fd2;
background-color: #664fd2;
/* Tailwind (arbitrary) */
class="text-[#664fd2] bg-[#664fd2]"
/* SCSS */
$brand: #664fd2;
/* SwiftUI */
Color(red: 0.400, green: 0.310, blue: 0.824)
/* Android */
Color.parseColor("#664fd2")Accessibility — WCAG contrast
Aa
#664fd2 on white: 5.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664fd2 on black: 3.61:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green31.0%
Blue82.4%
CMYK percentages
Cyan51.4%
Magenta62.4%
Yellow0.0%
Key (black)17.6%
Color previews
#664fd2 text on a black background
contrast 3.61:1
Card sample
#664fd2 text on a white background
contrast 5.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664fd2;
Background color
Panel with #664fd2 background
background-color: #664fd2;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664fd2;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 79, 210, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 79, 210, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664fd2; background: linear-gradient(135deg, #664fd2, #BD4FD2);