#644cd3
a balanced, vivid blue · warm · closest name: slateblue
RGB
100, 76, 211
HSL
251°, 61%, 56%
CMYK
53, 64, 0, 17
Luminance
0.1258
Every format
| HEX | #644cd3 |
| RGB | rgb(100, 76, 211) |
| HSL | hsl(251, 61%, 56%) |
| CMYK | cmyk(53%, 64%, 0%, 17%) |
| LAB | lab(42.1 44.8 -66.5) |
| LCH | lch(42.1 80.2 304.0) |
| OKLCH | oklch(0.520 0.198 285.4) |
Copy-ready code
/* CSS */
color: #644cd3;
background-color: #644cd3;
/* Tailwind (arbitrary) */
class="text-[#644cd3] bg-[#644cd3]"
/* SCSS */
$brand: #644cd3;
/* SwiftUI */
Color(red: 0.392, green: 0.298, blue: 0.827)
/* Android */
Color.parseColor("#644cd3")Accessibility — WCAG contrast
Aa
#644cd3 on white: 5.97:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#644cd3 on black: 3.52:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green29.8%
Blue82.7%
CMYK percentages
Cyan52.6%
Magenta64.0%
Yellow0.0%
Key (black)17.3%
Color previews
#644cd3 text on a black background
contrast 3.52:1
Card sample
#644cd3 text on a white background
contrast 5.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #644cd3;
Background color
Panel with #644cd3 background
background-color: #644cd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #644cd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 76, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 76, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #644cd3; background: linear-gradient(135deg, #644cd3, #BE4CD3);