#643cfb
a balanced, electric blue · warm · closest name: blue
RGB
100, 60, 251
HSL
253°, 96%, 61%
CMYK
60, 76, 0, 2
Luminance
0.1291
Every format
| HEX | #643cfb |
| RGB | rgb(100, 60, 251) |
| HSL | hsl(253, 96%, 61%) |
| CMYK | cmyk(60%, 76%, 0%, 2%) |
| LAB | lab(42.6 64.6 -88.3) |
| LCH | lch(42.6 109.4 306.2) |
| OKLCH | oklch(0.534 0.261 282.6) |
Copy-ready code
/* CSS */
color: #643cfb;
background-color: #643cfb;
/* Tailwind (arbitrary) */
class="text-[#643cfb] bg-[#643cfb]"
/* SCSS */
$brand: #643cfb;
/* SwiftUI */
Color(red: 0.392, green: 0.235, blue: 0.984)
/* Android */
Color.parseColor("#643cfb")Accessibility — WCAG contrast
Aa
#643cfb on white: 5.86:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#643cfb on black: 3.58:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green23.5%
Blue98.4%
CMYK percentages
Cyan60.2%
Magenta76.1%
Yellow0.0%
Key (black)1.6%
Color previews
#643cfb text on a black background
contrast 3.58:1
Card sample
#643cfb text on a white background
contrast 5.86:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643cfb;
Background color
Panel with #643cfb background
background-color: #643cfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643cfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 60, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 60, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643cfb; background: linear-gradient(135deg, #643cfb, #E33CFB);