#3f73df
a balanced, vivid blue · cool · closest name: royalblue
RGB
63, 115, 223
HSL
221°, 71%, 56%
CMYK
72, 48, 0, 13
Luminance
0.1865
Every format
| HEX | #3f73df |
| RGB | rgb(63, 115, 223) |
| HSL | hsl(221, 71%, 56%) |
| CMYK | cmyk(72%, 48%, 0%, 13%) |
| LAB | lab(50.3 19.0 -60.2) |
| LCH | lch(50.3 63.1 287.5) |
| OKLCH | oklch(0.578 0.174 262.8) |
Copy-ready code
/* CSS */
color: #3f73df;
background-color: #3f73df;
/* Tailwind (arbitrary) */
class="text-[#3f73df] bg-[#3f73df]"
/* SCSS */
$brand: #3f73df;
/* SwiftUI */
Color(red: 0.247, green: 0.451, blue: 0.875)
/* Android */
Color.parseColor("#3f73df")Accessibility — WCAG contrast
Aa
#3f73df on white: 4.44:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3f73df on black: 4.73:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green45.1%
Blue87.5%
CMYK percentages
Cyan71.7%
Magenta48.4%
Yellow0.0%
Key (black)12.5%
Color previews
#3f73df text on a black background
contrast 4.73:1
Card sample
#3f73df text on a white background
contrast 4.44:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f73df;
Background color
Panel with #3f73df background
background-color: #3f73df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f73df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 115, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 115, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f73df; background: linear-gradient(135deg, #3f73df, #763FDF);