#045cdd
a dark, electric blue · cool · closest name: royalblue
RGB
4, 92, 221
HSL
216°, 96%, 44%
CMYK
98, 58, 0, 13
Luminance
0.1290
Every format
| HEX | #045cdd |
| RGB | rgb(4, 92, 221) |
| HSL | hsl(216, 96%, 44%) |
| CMYK | cmyk(98%, 58%, 0%, 13%) |
| LAB | lab(42.6 28.7 -71.6) |
| LCH | lch(42.6 77.1 291.8) |
| OKLCH | oklch(0.515 0.210 260.3) |
Copy-ready code
/* CSS */
color: #045cdd;
background-color: #045cdd;
/* Tailwind (arbitrary) */
class="text-[#045cdd] bg-[#045cdd]"
/* SCSS */
$brand: #045cdd;
/* SwiftUI */
Color(red: 0.016, green: 0.361, blue: 0.867)
/* Android */
Color.parseColor("#045cdd")Accessibility — WCAG contrast
Aa
#045cdd on white: 5.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#045cdd on black: 3.58:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green36.1%
Blue86.7%
CMYK percentages
Cyan98.2%
Magenta58.4%
Yellow0.0%
Key (black)13.3%
Color previews
#045cdd text on a black background
contrast 3.58:1
Card sample
#045cdd text on a white background
contrast 5.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #045cdd;
Background color
Panel with #045cdd background
background-color: #045cdd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #045cdd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 92, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 92, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #045cdd; background: linear-gradient(135deg, #045cdd, #3D04DD);