#643fdf
a balanced, vivid blue · warm · closest name: slateblue
RGB
100, 63, 223
HSL
254°, 71%, 56%
CMYK
55, 72, 0, 13
Luminance
0.1159
Every format
| HEX | #643fdf |
| RGB | rgb(100, 63, 223) |
| HSL | hsl(254, 71%, 56%) |
| CMYK | cmyk(55%, 72%, 0%, 13%) |
| LAB | lab(40.6 55.3 -75.9) |
| LCH | lch(40.6 93.9 306.1) |
| OKLCH | oklch(0.512 0.227 285.8) |
Copy-ready code
/* CSS */
color: #643fdf;
background-color: #643fdf;
/* Tailwind (arbitrary) */
class="text-[#643fdf] bg-[#643fdf]"
/* SCSS */
$brand: #643fdf;
/* SwiftUI */
Color(red: 0.392, green: 0.247, blue: 0.875)
/* Android */
Color.parseColor("#643fdf")Accessibility — WCAG contrast
Aa
#643fdf on white: 6.33:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643fdf on black: 3.32:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green24.7%
Blue87.5%
CMYK percentages
Cyan55.2%
Magenta71.7%
Yellow0.0%
Key (black)12.5%
Color previews
#643fdf text on a black background
contrast 3.32:1
Card sample
#643fdf text on a white background
contrast 6.33:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643fdf;
Background color
Panel with #643fdf background
background-color: #643fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 63, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 63, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643fdf; background: linear-gradient(135deg, #643fdf, #CF3FDF);