#664dbb
a balanced, soft blue · warm · closest name: slateblue
RGB
102, 77, 187
HSL
254°, 45%, 52%
CMYK
46, 59, 0, 27
Luminance
0.1172
Every format
| HEX | #664dbb |
| RGB | rgb(102, 77, 187) |
| HSL | hsl(254, 45%, 52%) |
| CMYK | cmyk(46%, 59%, 0%, 27%) |
| LAB | lab(40.8 37.6 -54.7) |
| LCH | lch(40.8 66.4 304.5) |
| OKLCH | oklch(0.505 0.166 289.6) |
Copy-ready code
/* CSS */
color: #664dbb;
background-color: #664dbb;
/* Tailwind (arbitrary) */
class="text-[#664dbb] bg-[#664dbb]"
/* SCSS */
$brand: #664dbb;
/* SwiftUI */
Color(red: 0.400, green: 0.302, blue: 0.733)
/* Android */
Color.parseColor("#664dbb")Accessibility — WCAG contrast
Aa
#664dbb on white: 6.28:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#664dbb on black: 3.34:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green30.2%
Blue73.3%
CMYK percentages
Cyan45.5%
Magenta58.8%
Yellow0.0%
Key (black)26.7%
Color previews
#664dbb text on a black background
contrast 3.34:1
Card sample
#664dbb text on a white background
contrast 6.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664dbb;
Background color
Panel with #664dbb background
background-color: #664dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 77, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 77, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664dbb; background: linear-gradient(135deg, #664dbb, #AF4DBB);