#644bdf
a balanced, vivid blue · warm · closest name: slateblue
RGB
100, 75, 223
HSL
250°, 70%, 58%
CMYK
55, 66, 0, 13
Luminance
0.1307
Every format
| HEX | #644bdf |
| RGB | rgb(100, 75, 223) |
| HSL | hsl(250, 70%, 58%) |
| CMYK | cmyk(55%, 66%, 0%, 13%) |
| LAB | lab(42.9 49.0 -72.1) |
| LCH | lch(42.9 87.2 304.2) |
| OKLCH | oklch(0.528 0.214 284.1) |
Copy-ready code
/* CSS */
color: #644bdf;
background-color: #644bdf;
/* Tailwind (arbitrary) */
class="text-[#644bdf] bg-[#644bdf]"
/* SCSS */
$brand: #644bdf;
/* SwiftUI */
Color(red: 0.392, green: 0.294, blue: 0.875)
/* Android */
Color.parseColor("#644bdf")Accessibility — WCAG contrast
Aa
#644bdf on white: 5.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#644bdf on black: 3.61:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green29.4%
Blue87.5%
CMYK percentages
Cyan55.2%
Magenta66.4%
Yellow0.0%
Key (black)12.5%
Color previews
#644bdf text on a black background
contrast 3.61:1
Card sample
#644bdf text on a white background
contrast 5.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #644bdf;
Background color
Panel with #644bdf background
background-color: #644bdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #644bdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 75, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 75, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #644bdf; background: linear-gradient(135deg, #644bdf, #C74BDF);