#644dbb
a balanced, soft blue · warm · closest name: slateblue
RGB
100, 77, 187
HSL
253°, 45%, 52%
CMYK
47, 59, 0, 27
Luminance
0.1160
Every format
| HEX | #644dbb |
| RGB | rgb(100, 77, 187) |
| HSL | hsl(253, 45%, 52%) |
| CMYK | cmyk(47%, 59%, 0%, 27%) |
| LAB | lab(40.6 37.1 -55.0) |
| LCH | lch(40.6 66.4 304.0) |
| OKLCH | oklch(0.503 0.166 288.6) |
Copy-ready code
/* CSS */
color: #644dbb;
background-color: #644dbb;
/* Tailwind (arbitrary) */
class="text-[#644dbb] bg-[#644dbb]"
/* SCSS */
$brand: #644dbb;
/* SwiftUI */
Color(red: 0.392, green: 0.302, blue: 0.733)
/* Android */
Color.parseColor("#644dbb")Accessibility — WCAG contrast
Aa
#644dbb on white: 6.32:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#644dbb on black: 3.32:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green30.2%
Blue73.3%
CMYK percentages
Cyan46.5%
Magenta58.8%
Yellow0.0%
Key (black)26.7%
Color previews
#644dbb text on a black background
contrast 3.32:1
Card sample
#644dbb text on a white background
contrast 6.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #644dbb;
Background color
Panel with #644dbb background
background-color: #644dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #644dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 77, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 77, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #644dbb; background: linear-gradient(135deg, #644dbb, #AD4DBB);