#643bc9
a balanced, vivid violet · warm · closest name: slateblue
RGB
100, 59, 201
HSL
257°, 57%, 51%
CMYK
50, 71, 0, 21
Luminance
0.1005
Every format
| HEX | #643bc9 |
| RGB | rgb(100, 59, 201) |
| HSL | hsl(257, 57%, 51%) |
| CMYK | cmyk(50%, 71%, 0%, 21%) |
| LAB | lab(37.9 51.2 -67.5) |
| LCH | lch(37.9 84.7 307.2) |
| OKLCH | oklch(0.487 0.206 289.8) |
Copy-ready code
/* CSS */
color: #643bc9;
background-color: #643bc9;
/* Tailwind (arbitrary) */
class="text-[#643bc9] bg-[#643bc9]"
/* SCSS */
$brand: #643bc9;
/* SwiftUI */
Color(red: 0.392, green: 0.231, blue: 0.788)
/* Android */
Color.parseColor("#643bc9")Accessibility — WCAG contrast
Aa
#643bc9 on white: 6.97:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643bc9 on black: 3.01:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green23.1%
Blue78.8%
CMYK percentages
Cyan50.2%
Magenta70.6%
Yellow0.0%
Key (black)21.2%
Color previews
#643bc9 text on a black background
contrast 3.01:1
Card sample
#643bc9 text on a white background
contrast 6.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643bc9;
Background color
Panel with #643bc9 background
background-color: #643bc9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643bc9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 59, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 59, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643bc9; background: linear-gradient(135deg, #643bc9, #C33BC9);