#045fef
a balanced, electric blue · cool · closest name: royalblue
RGB
4, 95, 239
HSL
217°, 97%, 48%
CMYK
98, 60, 0, 6
Luminance
0.1444
Every format
| HEX | #045fef |
| RGB | rgb(4, 95, 239) |
| HSL | hsl(217, 97%, 48%) |
| CMYK | cmyk(98%, 60%, 0%, 6%) |
| LAB | lab(44.9 33.7 -78.1) |
| LCH | lch(44.9 85.0 293.3) |
| OKLCH | oklch(0.537 0.229 261.0) |
Copy-ready code
/* CSS */
color: #045fef;
background-color: #045fef;
/* Tailwind (arbitrary) */
class="text-[#045fef] bg-[#045fef]"
/* SCSS */
$brand: #045fef;
/* SwiftUI */
Color(red: 0.016, green: 0.373, blue: 0.937)
/* Android */
Color.parseColor("#045fef")Accessibility — WCAG contrast
Aa
#045fef on white: 5.40:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#045fef on black: 3.89:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green37.3%
Blue93.7%
CMYK percentages
Cyan98.3%
Magenta60.3%
Yellow0.0%
Key (black)6.3%
Color previews
#045fef text on a black background
contrast 3.89:1
Card sample
#045fef text on a white background
contrast 5.40:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #045fef;
Background color
Panel with #045fef background
background-color: #045fef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #045fef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 95, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 95, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #045fef; background: linear-gradient(135deg, #045fef, #4604EF);