#4237eb
a balanced, electric blue · warm · closest name: blue
RGB
66, 55, 235
HSL
244°, 82%, 57%
CMYK
72, 77, 0, 8
Luminance
0.0989
Every format
| HEX | #4237eb |
| RGB | rgb(66, 55, 235) |
| HSL | hsl(244, 82%, 57%) |
| CMYK | cmyk(72%, 77%, 0%, 8%) |
| LAB | lab(37.6 59.1 -87.6) |
| LCH | lch(37.6 105.7 304.0) |
| OKLCH | oklch(0.488 0.254 274.2) |
Copy-ready code
/* CSS */
color: #4237eb;
background-color: #4237eb;
/* Tailwind (arbitrary) */
class="text-[#4237eb] bg-[#4237eb]"
/* SCSS */
$brand: #4237eb;
/* SwiftUI */
Color(red: 0.259, green: 0.216, blue: 0.922)
/* Android */
Color.parseColor("#4237eb")Accessibility — WCAG contrast
Aa
#4237eb on white: 7.05:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#4237eb on black: 2.98:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green21.6%
Blue92.2%
CMYK percentages
Cyan71.9%
Magenta76.6%
Yellow0.0%
Key (black)7.8%
Color previews
#4237eb text on a black background
contrast 2.98:1
Card sample
#4237eb text on a white background
contrast 7.05:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4237eb;
Background color
Panel with #4237eb background
background-color: #4237eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4237eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 55, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 55, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4237eb; background: linear-gradient(135deg, #4237eb, #BA37EB);