#664dfd
a balanced, electric blue · warm · closest name: slateblue
RGB
102, 77, 253
HSL
249°, 98%, 65%
CMYK
60, 70, 0, 1
Luminance
0.1522
Every format
| HEX | #664dfd |
| RGB | rgb(102, 77, 253) |
| HSL | hsl(249, 98%, 65%) |
| CMYK | cmyk(60%, 70%, 0%, 1%) |
| LAB | lab(45.9 57.0 -84.0) |
| LCH | lch(45.9 101.5 304.2) |
| OKLCH | oklch(0.559 0.247 281.3) |
Copy-ready code
/* CSS */
color: #664dfd;
background-color: #664dfd;
/* Tailwind (arbitrary) */
class="text-[#664dfd] bg-[#664dfd]"
/* SCSS */
$brand: #664dfd;
/* SwiftUI */
Color(red: 0.400, green: 0.302, blue: 0.992)
/* Android */
Color.parseColor("#664dfd")Accessibility — WCAG contrast
Aa
#664dfd on white: 5.19:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664dfd on black: 4.04:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green30.2%
Blue99.2%
CMYK percentages
Cyan59.7%
Magenta69.6%
Yellow0.0%
Key (black)0.8%
Color previews
#664dfd text on a black background
contrast 4.04:1
Card sample
#664dfd text on a white background
contrast 5.19:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664dfd;
Background color
Panel with #664dfd background
background-color: #664dfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664dfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 77, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 77, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664dfd; background: linear-gradient(135deg, #664dfd, #DB4DFD);