#042cdd
a dark, electric blue · warm · closest name: blue
RGB
4, 44, 221
HSL
229°, 96%, 44%
CMYK
98, 80, 0, 13
Luminance
0.0705
Every format
| HEX | #042cdd |
| RGB | rgb(4, 44, 221) |
| HSL | hsl(229, 96%, 44%) |
| CMYK | cmyk(98%, 80%, 0%, 13%) |
| LAB | lab(31.9 57.5 -89.2) |
| LCH | lch(31.9 106.1 302.8) |
| OKLCH | oklch(0.437 0.260 264.4) |
Copy-ready code
/* CSS */
color: #042cdd;
background-color: #042cdd;
/* Tailwind (arbitrary) */
class="text-[#042cdd] bg-[#042cdd]"
/* SCSS */
$brand: #042cdd;
/* SwiftUI */
Color(red: 0.016, green: 0.173, blue: 0.867)
/* Android */
Color.parseColor("#042cdd")Accessibility — WCAG contrast
Aa
#042cdd on white: 8.72:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042cdd on black: 2.41:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green17.3%
Blue86.7%
CMYK percentages
Cyan98.2%
Magenta80.1%
Yellow0.0%
Key (black)13.3%
Color previews
#042cdd text on a black background
contrast 2.41:1
Card sample
#042cdd text on a white background
contrast 8.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042cdd;
Background color
Panel with #042cdd background
background-color: #042cdd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042cdd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 44, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 44, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042cdd; background: linear-gradient(135deg, #042cdd, #6C04DD);