#042db5
a dark, electric blue · warm · closest name: navy
RGB
4, 45, 181
HSL
226°, 96%, 36%
CMYK
98, 75, 0, 29
Luminance
0.0524
Every format
| HEX | #042db5 |
| RGB | rgb(4, 45, 181) |
| HSL | hsl(226, 96%, 36%) |
| CMYK | cmyk(98%, 75%, 0%, 29%) |
| LAB | lab(27.4 43.5 -73.3) |
| LCH | lch(27.4 85.3 300.7) |
| OKLCH | oklch(0.392 0.214 264.1) |
Copy-ready code
/* CSS */
color: #042db5;
background-color: #042db5;
/* Tailwind (arbitrary) */
class="text-[#042db5] bg-[#042db5]"
/* SCSS */
$brand: #042db5;
/* SwiftUI */
Color(red: 0.016, green: 0.176, blue: 0.710)
/* Android */
Color.parseColor("#042db5")Accessibility — WCAG contrast
Aa
#042db5 on white: 10.26:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042db5 on black: 2.05:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green17.6%
Blue71.0%
CMYK percentages
Cyan97.8%
Magenta75.1%
Yellow0.0%
Key (black)29.0%
Color previews
#042db5 text on a black background
contrast 2.05:1
Card sample
#042db5 text on a white background
contrast 10.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042db5;
Background color
Panel with #042db5 background
background-color: #042db5;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042db5;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 45, 181, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 45, 181, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042db5; background: linear-gradient(135deg, #042db5, #5104B5);