#643ace
a balanced, vivid violet · warm · closest name: slateblue
RGB
100, 58, 206
HSL
257°, 60%, 52%
CMYK
52, 72, 0, 19
Luminance
0.1019
Every format
| HEX | #643ace |
| RGB | rgb(100, 58, 206) |
| HSL | hsl(257, 60%, 52%) |
| CMYK | cmyk(52%, 72%, 0%, 19%) |
| LAB | lab(38.2 53.1 -70.0) |
| LCH | lch(38.2 87.9 307.2) |
| OKLCH | oklch(0.491 0.213 289.1) |
Copy-ready code
/* CSS */
color: #643ace;
background-color: #643ace;
/* Tailwind (arbitrary) */
class="text-[#643ace] bg-[#643ace]"
/* SCSS */
$brand: #643ace;
/* SwiftUI */
Color(red: 0.392, green: 0.227, blue: 0.808)
/* Android */
Color.parseColor("#643ace")Accessibility — WCAG contrast
Aa
#643ace on white: 6.91:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643ace on black: 3.04:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green22.7%
Blue80.8%
CMYK percentages
Cyan51.5%
Magenta71.8%
Yellow0.0%
Key (black)19.2%
Color previews
#643ace text on a black background
contrast 3.04:1
Card sample
#643ace text on a white background
contrast 6.91:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643ace;
Background color
Panel with #643ace background
background-color: #643ace;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643ace;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 58, 206, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 58, 206, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643ace; background: linear-gradient(135deg, #643ace, #C73ACE);