#043df3
a balanced, electric blue · warm · closest name: blue
RGB
4, 61, 243
HSL
226°, 97%, 48%
CMYK
98, 75, 0, 5
Luminance
0.0983
Every format
| HEX | #043df3 |
| RGB | rgb(4, 61, 243) |
| HSL | hsl(226, 97%, 48%) |
| CMYK | cmyk(98%, 75%, 0%, 5%) |
| LAB | lab(37.5 55.8 -92.4) |
| LCH | lch(37.5 107.9 301.1) |
| OKLCH | oklch(0.484 0.270 264.0) |
Copy-ready code
/* CSS */
color: #043df3;
background-color: #043df3;
/* Tailwind (arbitrary) */
class="text-[#043df3] bg-[#043df3]"
/* SCSS */
$brand: #043df3;
/* SwiftUI */
Color(red: 0.016, green: 0.239, blue: 0.953)
/* Android */
Color.parseColor("#043df3")Accessibility — WCAG contrast
Aa
#043df3 on white: 7.08:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#043df3 on black: 2.97:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green23.9%
Blue95.3%
CMYK percentages
Cyan98.4%
Magenta74.9%
Yellow0.0%
Key (black)4.7%
Color previews
#043df3 text on a black background
contrast 2.97:1
Card sample
#043df3 text on a white background
contrast 7.08:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #043df3;
Background color
Panel with #043df3 background
background-color: #043df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #043df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 61, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 61, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #043df3; background: linear-gradient(135deg, #043df3, #6A04F3);