#643eb4
a balanced, vivid violet · warm · closest name: slateblue
RGB
100, 62, 180
HSL
259°, 49%, 48%
CMYK
44, 66, 0, 29
Luminance
0.0945
Every format
| HEX | #643eb4 |
| RGB | rgb(100, 62, 180) |
| HSL | hsl(259, 49%, 48%) |
| CMYK | cmyk(44%, 66%, 0%, 29%) |
| LAB | lab(36.8 43.7 -57.0) |
| LCH | lch(36.8 71.8 307.5) |
| OKLCH | oklch(0.474 0.177 293.3) |
Copy-ready code
/* CSS */
color: #643eb4;
background-color: #643eb4;
/* Tailwind (arbitrary) */
class="text-[#643eb4] bg-[#643eb4]"
/* SCSS */
$brand: #643eb4;
/* SwiftUI */
Color(red: 0.392, green: 0.243, blue: 0.706)
/* Android */
Color.parseColor("#643eb4")Accessibility — WCAG contrast
Aa
#643eb4 on white: 7.27:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#643eb4 on black: 2.89:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green24.3%
Blue70.6%
CMYK percentages
Cyan44.4%
Magenta65.6%
Yellow0.0%
Key (black)29.4%
Color previews
#643eb4 text on a black background
contrast 2.89:1
Card sample
#643eb4 text on a white background
contrast 7.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643eb4;
Background color
Panel with #643eb4 background
background-color: #643eb4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643eb4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 62, 180, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 62, 180, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643eb4; background: linear-gradient(135deg, #643eb4, #B33EB4);