#4271eb
a balanced, electric blue · cool · closest name: royalblue
RGB
66, 113, 235
HSL
223°, 81%, 59%
CMYK
72, 52, 0, 8
Luminance
0.1897
Every format
| HEX | #4271eb |
| RGB | rgb(66, 113, 235) |
| HSL | hsl(223, 81%, 59%) |
| CMYK | cmyk(72%, 52%, 0%, 8%) |
| LAB | lab(50.6 24.9 -66.3) |
| LCH | lch(50.6 70.9 290.6) |
| OKLCH | oklch(0.583 0.192 265.1) |
Copy-ready code
/* CSS */
color: #4271eb;
background-color: #4271eb;
/* Tailwind (arbitrary) */
class="text-[#4271eb] bg-[#4271eb]"
/* SCSS */
$brand: #4271eb;
/* SwiftUI */
Color(red: 0.259, green: 0.443, blue: 0.922)
/* Android */
Color.parseColor("#4271eb")Accessibility — WCAG contrast
Aa
#4271eb on white: 4.38:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#4271eb on black: 4.79:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green44.3%
Blue92.2%
CMYK percentages
Cyan71.9%
Magenta51.9%
Yellow0.0%
Key (black)7.8%
Color previews
#4271eb text on a black background
contrast 4.79:1
Card sample
#4271eb text on a white background
contrast 4.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4271eb;
Background color
Panel with #4271eb background
background-color: #4271eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4271eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 113, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 113, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4271eb; background: linear-gradient(135deg, #4271eb, #8442EB);