#045cef
a balanced, electric blue · cool · closest name: royalblue
RGB
4, 92, 239
HSL
218°, 97%, 48%
CMYK
98, 62, 0, 6
Luminance
0.1391
Every format
| HEX | #045cef |
| RGB | rgb(4, 92, 239) |
| HSL | hsl(218, 97%, 48%) |
| CMYK | cmyk(98%, 62%, 0%, 6%) |
| LAB | lab(44.1 35.6 -79.3) |
| LCH | lch(44.1 86.9 294.2) |
| OKLCH | oklch(0.531 0.233 261.4) |
Copy-ready code
/* CSS */
color: #045cef;
background-color: #045cef;
/* Tailwind (arbitrary) */
class="text-[#045cef] bg-[#045cef]"
/* SCSS */
$brand: #045cef;
/* SwiftUI */
Color(red: 0.016, green: 0.361, blue: 0.937)
/* Android */
Color.parseColor("#045cef")Accessibility — WCAG contrast
Aa
#045cef on white: 5.55:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#045cef on black: 3.78:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green36.1%
Blue93.7%
CMYK percentages
Cyan98.3%
Magenta61.5%
Yellow0.0%
Key (black)6.3%
Color previews
#045cef text on a black background
contrast 3.78:1
Card sample
#045cef text on a white background
contrast 5.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #045cef;
Background color
Panel with #045cef background
background-color: #045cef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #045cef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 92, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 92, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #045cef; background: linear-gradient(135deg, #045cef, #4804EF);