#643dbb
a balanced, vivid violet · warm · closest name: slateblue
RGB
100, 61, 187
HSL
259°, 51%, 49%
CMYK
47, 67, 0, 27
Luminance
0.0963
Every format
| HEX | #643dbb |
| RGB | rgb(100, 61, 187) |
| HSL | hsl(259, 51%, 49%) |
| CMYK | cmyk(47%, 67%, 0%, 27%) |
| LAB | lab(37.2 46.2 -60.6) |
| LCH | lch(37.2 76.2 307.4) |
| OKLCH | oklch(0.479 0.187 292.0) |
Copy-ready code
/* CSS */
color: #643dbb;
background-color: #643dbb;
/* Tailwind (arbitrary) */
class="text-[#643dbb] bg-[#643dbb]"
/* SCSS */
$brand: #643dbb;
/* SwiftUI */
Color(red: 0.392, green: 0.239, blue: 0.733)
/* Android */
Color.parseColor("#643dbb")Accessibility — WCAG contrast
Aa
#643dbb on white: 7.17:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#643dbb on black: 2.93:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green23.9%
Blue73.3%
CMYK percentages
Cyan46.5%
Magenta67.4%
Yellow0.0%
Key (black)26.7%
Color previews
#643dbb text on a black background
contrast 2.93:1
Card sample
#643dbb text on a white background
contrast 7.17:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643dbb;
Background color
Panel with #643dbb background
background-color: #643dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 61, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 61, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643dbb; background: linear-gradient(135deg, #643dbb, #B83DBB);