#664cdf
a balanced, vivid blue · warm · closest name: slateblue
RGB
102, 76, 223
HSL
251°, 70%, 59%
CMYK
54, 66, 0, 13
Luminance
0.1332
Every format
| HEX | #664cdf |
| RGB | rgb(102, 76, 223) |
| HSL | hsl(251, 70%, 59%) |
| CMYK | cmyk(54%, 66%, 0%, 13%) |
| LAB | lab(43.2 48.7 -71.5) |
| LCH | lch(43.2 86.5 304.3) |
| OKLCH | oklch(0.532 0.212 284.7) |
Copy-ready code
/* CSS */
color: #664cdf;
background-color: #664cdf;
/* Tailwind (arbitrary) */
class="text-[#664cdf] bg-[#664cdf]"
/* SCSS */
$brand: #664cdf;
/* SwiftUI */
Color(red: 0.400, green: 0.298, blue: 0.875)
/* Android */
Color.parseColor("#664cdf")Accessibility — WCAG contrast
Aa
#664cdf on white: 5.73:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664cdf on black: 3.66:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green29.8%
Blue87.5%
CMYK percentages
Cyan54.3%
Magenta65.9%
Yellow0.0%
Key (black)12.5%
Color previews
#664cdf text on a black background
contrast 3.66:1
Card sample
#664cdf text on a white background
contrast 5.73:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664cdf;
Background color
Panel with #664cdf background
background-color: #664cdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664cdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 76, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 76, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664cdf; background: linear-gradient(135deg, #664cdf, #C84CDF);