#644cdb
a balanced, vivid blue · warm · closest name: slateblue
RGB
100, 76, 219
HSL
250°, 67%, 58%
CMYK
54, 65, 0, 14
Luminance
0.1299
Every format
| HEX | #644cdb |
| RGB | rgb(100, 76, 219) |
| HSL | hsl(250, 67%, 58%) |
| CMYK | cmyk(54%, 65%, 0%, 14%) |
| LAB | lab(42.8 47.2 -70.0) |
| LCH | lch(42.8 84.5 304.0) |
| OKLCH | oklch(0.527 0.208 284.4) |
Copy-ready code
/* CSS */
color: #644cdb;
background-color: #644cdb;
/* Tailwind (arbitrary) */
class="text-[#644cdb] bg-[#644cdb]"
/* SCSS */
$brand: #644cdb;
/* SwiftUI */
Color(red: 0.392, green: 0.298, blue: 0.859)
/* Android */
Color.parseColor("#644cdb")Accessibility — WCAG contrast
Aa
#644cdb on white: 5.84:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#644cdb on black: 3.60:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green29.8%
Blue85.9%
CMYK percentages
Cyan54.3%
Magenta65.3%
Yellow0.0%
Key (black)14.1%
Color previews
#644cdb text on a black background
contrast 3.60:1
Card sample
#644cdb text on a white background
contrast 5.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #644cdb;
Background color
Panel with #644cdb background
background-color: #644cdb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #644cdb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 76, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 76, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #644cdb; background: linear-gradient(135deg, #644cdb, #C34CDB);