#643dcd
a balanced, vivid violet · warm · closest name: slateblue
RGB
100, 61, 205
HSL
256°, 59%, 52%
CMYK
51, 70, 0, 20
Luminance
0.1045
Every format
| HEX | #643dcd |
| RGB | rgb(100, 61, 205) |
| HSL | hsl(256, 59%, 52%) |
| CMYK | cmyk(51%, 70%, 0%, 20%) |
| LAB | lab(38.6 51.3 -68.7) |
| LCH | lch(38.6 85.7 306.8) |
| OKLCH | oklch(0.494 0.208 288.8) |
Copy-ready code
/* CSS */
color: #643dcd;
background-color: #643dcd;
/* Tailwind (arbitrary) */
class="text-[#643dcd] bg-[#643dcd]"
/* SCSS */
$brand: #643dcd;
/* SwiftUI */
Color(red: 0.392, green: 0.239, blue: 0.804)
/* Android */
Color.parseColor("#643dcd")Accessibility — WCAG contrast
Aa
#643dcd on white: 6.79:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643dcd on black: 3.09:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green23.9%
Blue80.4%
CMYK percentages
Cyan51.2%
Magenta70.2%
Yellow0.0%
Key (black)19.6%
Color previews
#643dcd text on a black background
contrast 3.09:1
Card sample
#643dcd text on a white background
contrast 6.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643dcd;
Background color
Panel with #643dcd background
background-color: #643dcd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643dcd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 61, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 61, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643dcd; background: linear-gradient(135deg, #643dcd, #C43DCD);