#045af0
a balanced, electric blue · cool · closest name: royalblue
RGB
4, 90, 240
HSL
218°, 97%, 48%
CMYK
98, 63, 0, 6
Luminance
0.1363
Every format
| HEX | #045af0 |
| RGB | rgb(4, 90, 240) |
| HSL | hsl(218, 97%, 48%) |
| CMYK | cmyk(98%, 63%, 0%, 6%) |
| LAB | lab(43.7 37.2 -80.5) |
| LCH | lch(43.7 88.7 294.8) |
| OKLCH | oklch(0.528 0.236 261.7) |
Copy-ready code
/* CSS */
color: #045af0;
background-color: #045af0;
/* Tailwind (arbitrary) */
class="text-[#045af0] bg-[#045af0]"
/* SCSS */
$brand: #045af0;
/* SwiftUI */
Color(red: 0.016, green: 0.353, blue: 0.941)
/* Android */
Color.parseColor("#045af0")Accessibility — WCAG contrast
Aa
#045af0 on white: 5.64:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#045af0 on black: 3.73:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green35.3%
Blue94.1%
CMYK percentages
Cyan98.3%
Magenta62.5%
Yellow0.0%
Key (black)5.9%
Color previews
#045af0 text on a black background
contrast 3.73:1
Card sample
#045af0 text on a white background
contrast 5.64:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #045af0;
Background color
Panel with #045af0 background
background-color: #045af0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #045af0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 90, 240, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 90, 240, 0.45);
Border & gradient
Gradient panel
border: 3px solid #045af0; background: linear-gradient(135deg, #045af0, #4B04F0);