#3964df
a balanced, vivid blue · cool · closest name: royalblue
RGB
57, 100, 223
HSL
225°, 72%, 55%
CMYK
74, 55, 0, 13
Luminance
0.1531
Every format
| HEX | #3964df |
| RGB | rgb(57, 100, 223) |
| HSL | hsl(225, 72%, 55%) |
| CMYK | cmyk(74%, 55%, 0%, 13%) |
| LAB | lab(46.1 27.7 -67.0) |
| LCH | lch(46.1 72.5 292.5) |
| OKLCH | oklch(0.545 0.194 265.6) |
Copy-ready code
/* CSS */
color: #3964df;
background-color: #3964df;
/* Tailwind (arbitrary) */
class="text-[#3964df] bg-[#3964df]"
/* SCSS */
$brand: #3964df;
/* SwiftUI */
Color(red: 0.224, green: 0.392, blue: 0.875)
/* Android */
Color.parseColor("#3964df")Accessibility — WCAG contrast
Aa
#3964df on white: 5.17:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3964df on black: 4.06:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green39.2%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta55.2%
Yellow0.0%
Key (black)12.5%
Color previews
#3964df text on a black background
contrast 4.06:1
Card sample
#3964df text on a white background
contrast 5.17:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3964df;
Background color
Panel with #3964df background
background-color: #3964df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3964df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 100, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 100, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3964df; background: linear-gradient(135deg, #3964df, #7D39DF);