#4239cf
a balanced, vivid blue · warm · closest name: slateblue
RGB
66, 57, 207
HSL
244°, 61%, 52%
CMYK
68, 73, 0, 19
Luminance
0.0859
Every format
| HEX | #4239cf |
| RGB | rgb(66, 57, 207) |
| HSL | hsl(244, 61%, 52%) |
| CMYK | cmyk(68%, 73%, 0%, 19%) |
| LAB | lab(35.2 49.4 -75.6) |
| LCH | lch(35.2 90.3 303.2) |
| OKLCH | oklch(0.462 0.220 276.1) |
Copy-ready code
/* CSS */
color: #4239cf;
background-color: #4239cf;
/* Tailwind (arbitrary) */
class="text-[#4239cf] bg-[#4239cf]"
/* SCSS */
$brand: #4239cf;
/* SwiftUI */
Color(red: 0.259, green: 0.224, blue: 0.812)
/* Android */
Color.parseColor("#4239cf")Accessibility — WCAG contrast
Aa
#4239cf on white: 7.73:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#4239cf on black: 2.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green22.4%
Blue81.2%
CMYK percentages
Cyan68.1%
Magenta72.5%
Yellow0.0%
Key (black)18.8%
Color previews
#4239cf text on a black background
contrast 2.72:1
Card sample
#4239cf text on a white background
contrast 7.73:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4239cf;
Background color
Panel with #4239cf background
background-color: #4239cf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4239cf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 57, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 57, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4239cf; background: linear-gradient(135deg, #4239cf, #A639CF);