#3f64cf
a balanced, vivid blue · cool · closest name: royalblue
RGB
63, 100, 207
HSL
225°, 60%, 53%
CMYK
70, 52, 0, 19
Luminance
0.1468
Every format
| HEX | #3f64cf |
| RGB | rgb(63, 100, 207) |
| HSL | hsl(225, 60%, 53%) |
| CMYK | cmyk(70%, 52%, 0%, 19%) |
| LAB | lab(45.2 22.7 -59.3) |
| LCH | lch(45.2 63.5 290.9) |
| OKLCH | oklch(0.536 0.171 266.3) |
Copy-ready code
/* CSS */
color: #3f64cf;
background-color: #3f64cf;
/* Tailwind (arbitrary) */
class="text-[#3f64cf] bg-[#3f64cf]"
/* SCSS */
$brand: #3f64cf;
/* SwiftUI */
Color(red: 0.247, green: 0.392, blue: 0.812)
/* Android */
Color.parseColor("#3f64cf")Accessibility — WCAG contrast
Aa
#3f64cf on white: 5.34:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f64cf on black: 3.94:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green39.2%
Blue81.2%
CMYK percentages
Cyan69.6%
Magenta51.7%
Yellow0.0%
Key (black)18.8%
Color previews
#3f64cf text on a black background
contrast 3.94:1
Card sample
#3f64cf text on a white background
contrast 5.34:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f64cf;
Background color
Panel with #3f64cf background
background-color: #3f64cf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f64cf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 100, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 100, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f64cf; background: linear-gradient(135deg, #3f64cf, #7A3FCF);