#664fdf
a balanced, vivid blue · warm · closest name: slateblue
RGB
102, 79, 223
HSL
250°, 69%, 59%
CMYK
54, 65, 0, 13
Luminance
0.1374
Every format
| HEX | #664fdf |
| RGB | rgb(102, 79, 223) |
| HSL | hsl(250, 69%, 59%) |
| CMYK | cmyk(54%, 65%, 0%, 13%) |
| LAB | lab(43.9 47.0 -70.5) |
| LCH | lch(43.9 84.7 303.7) |
| OKLCH | oklch(0.536 0.209 284.1) |
Copy-ready code
/* CSS */
color: #664fdf;
background-color: #664fdf;
/* Tailwind (arbitrary) */
class="text-[#664fdf] bg-[#664fdf]"
/* SCSS */
$brand: #664fdf;
/* SwiftUI */
Color(red: 0.400, green: 0.310, blue: 0.875)
/* Android */
Color.parseColor("#664fdf")Accessibility — WCAG contrast
Aa
#664fdf on white: 5.60:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664fdf on black: 3.75:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green31.0%
Blue87.5%
CMYK percentages
Cyan54.3%
Magenta64.6%
Yellow0.0%
Key (black)12.5%
Color previews
#664fdf text on a black background
contrast 3.75:1
Card sample
#664fdf text on a white background
contrast 5.60:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664fdf;
Background color
Panel with #664fdf background
background-color: #664fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 79, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 79, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664fdf; background: linear-gradient(135deg, #664fdf, #C64FDF);