#643fec
a balanced, electric blue · warm · closest name: slateblue
RGB
100, 63, 236
HSL
253°, 82%, 59%
CMYK
58, 73, 0, 8
Luminance
0.1232
Every format
| HEX | #643fec |
| RGB | rgb(100, 63, 236) |
| HSL | hsl(253, 82%, 59%) |
| CMYK | cmyk(58%, 73%, 0%, 8%) |
| LAB | lab(41.7 59.0 -81.4) |
| LCH | lch(41.7 100.5 305.9) |
| OKLCH | oklch(0.524 0.242 284.1) |
Copy-ready code
/* CSS */
color: #643fec;
background-color: #643fec;
/* Tailwind (arbitrary) */
class="text-[#643fec] bg-[#643fec]"
/* SCSS */
$brand: #643fec;
/* SwiftUI */
Color(red: 0.392, green: 0.247, blue: 0.925)
/* Android */
Color.parseColor("#643fec")Accessibility — WCAG contrast
Aa
#643fec on white: 6.06:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643fec on black: 3.46:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green24.7%
Blue92.5%
CMYK percentages
Cyan57.6%
Magenta73.3%
Yellow0.0%
Key (black)7.5%
Color previews
#643fec text on a black background
contrast 3.46:1
Card sample
#643fec text on a white background
contrast 6.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643fec;
Background color
Panel with #643fec background
background-color: #643fec;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643fec;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 63, 236, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 63, 236, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643fec; background: linear-gradient(135deg, #643fec, #D73FEC);