#643fd4
a balanced, vivid blue · warm · closest name: slateblue
RGB
100, 63, 212
HSL
255°, 63%, 54%
CMYK
53, 70, 0, 17
Luminance
0.1102
Every format
| HEX | #643fd4 |
| RGB | rgb(100, 63, 212) |
| HSL | hsl(255, 63%, 54%) |
| CMYK | cmyk(53%, 70%, 0%, 17%) |
| LAB | lab(39.6 52.2 -71.1) |
| LCH | lch(39.6 88.2 306.3) |
| OKLCH | oklch(0.502 0.214 287.4) |
Copy-ready code
/* CSS */
color: #643fd4;
background-color: #643fd4;
/* Tailwind (arbitrary) */
class="text-[#643fd4] bg-[#643fd4]"
/* SCSS */
$brand: #643fd4;
/* SwiftUI */
Color(red: 0.392, green: 0.247, blue: 0.831)
/* Android */
Color.parseColor("#643fd4")Accessibility — WCAG contrast
Aa
#643fd4 on white: 6.56:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643fd4 on black: 3.20:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green24.7%
Blue83.1%
CMYK percentages
Cyan52.8%
Magenta70.3%
Yellow0.0%
Key (black)16.9%
Color previews
#643fd4 text on a black background
contrast 3.20:1
Card sample
#643fd4 text on a white background
contrast 6.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643fd4;
Background color
Panel with #643fd4 background
background-color: #643fd4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643fd4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 63, 212, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 63, 212, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643fd4; background: linear-gradient(135deg, #643fd4, #C73FD4);