#0439fd
a balanced, electric blue · warm · closest name: blue
RGB
4, 57, 253
HSL
227°, 98%, 50%
CMYK
98, 78, 0, 1
Luminance
0.1004
Every format
| HEX | #0439fd |
| RGB | rgb(4, 57, 253) |
| HSL | hsl(227, 98%, 50%) |
| CMYK | cmyk(98%, 78%, 0%, 1%) |
| LAB | lab(37.9 61.2 -97.4) |
| LCH | lch(37.9 115.0 302.1) |
| OKLCH | oklch(0.490 0.284 264.2) |
Copy-ready code
/* CSS */
color: #0439fd;
background-color: #0439fd;
/* Tailwind (arbitrary) */
class="text-[#0439fd] bg-[#0439fd]"
/* SCSS */
$brand: #0439fd;
/* SwiftUI */
Color(red: 0.016, green: 0.224, blue: 0.992)
/* Android */
Color.parseColor("#0439fd")Accessibility — WCAG contrast
Aa
#0439fd on white: 6.98:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#0439fd on black: 3.01:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green22.4%
Blue99.2%
CMYK percentages
Cyan98.4%
Magenta77.5%
Yellow0.0%
Key (black)0.8%
Color previews
#0439fd text on a black background
contrast 3.01:1
Card sample
#0439fd text on a white background
contrast 6.98:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0439fd;
Background color
Panel with #0439fd background
background-color: #0439fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0439fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 57, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 57, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0439fd; background: linear-gradient(135deg, #0439fd, #7504FD);