#042db4
a dark, electric blue · warm · closest name: navy
RGB
4, 45, 180
HSL
226°, 96%, 36%
CMYK
98, 75, 0, 29
Luminance
0.0520
Every format
| HEX | #042db4 |
| RGB | rgb(4, 45, 180) |
| HSL | hsl(226, 96%, 36%) |
| CMYK | cmyk(98%, 75%, 0%, 29%) |
| LAB | lab(27.3 43.2 -72.9) |
| LCH | lch(27.3 84.7 300.6) |
| OKLCH | oklch(0.391 0.213 264.1) |
Copy-ready code
/* CSS */
color: #042db4;
background-color: #042db4;
/* Tailwind (arbitrary) */
class="text-[#042db4] bg-[#042db4]"
/* SCSS */
$brand: #042db4;
/* SwiftUI */
Color(red: 0.016, green: 0.176, blue: 0.706)
/* Android */
Color.parseColor("#042db4")Accessibility — WCAG contrast
Aa
#042db4 on white: 10.30:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042db4 on black: 2.04:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green17.6%
Blue70.6%
CMYK percentages
Cyan97.8%
Magenta75.0%
Yellow0.0%
Key (black)29.4%
Color previews
#042db4 text on a black background
contrast 2.04:1
Card sample
#042db4 text on a white background
contrast 10.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042db4;
Background color
Panel with #042db4 background
background-color: #042db4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042db4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 45, 180, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 45, 180, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042db4; background: linear-gradient(135deg, #042db4, #5004B4);