#3951df
a balanced, vivid blue · warm · closest name: royalblue
RGB
57, 81, 223
HSL
231°, 72%, 55%
CMYK
74, 64, 0, 13
Luminance
0.1208
Every format
| HEX | #3951df |
| RGB | rgb(57, 81, 223) |
| HSL | hsl(231, 72%, 55%) |
| CMYK | cmyk(74%, 64%, 0%, 13%) |
| LAB | lab(41.3 39.7 -74.7) |
| LCH | lch(41.3 84.6 298.0) |
| OKLCH | oklch(0.510 0.216 269.4) |
Copy-ready code
/* CSS */
color: #3951df;
background-color: #3951df;
/* Tailwind (arbitrary) */
class="text-[#3951df] bg-[#3951df]"
/* SCSS */
$brand: #3951df;
/* SwiftUI */
Color(red: 0.224, green: 0.318, blue: 0.875)
/* Android */
Color.parseColor("#3951df")Accessibility — WCAG contrast
Aa
#3951df on white: 6.15:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3951df on black: 3.42:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green31.8%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta63.7%
Yellow0.0%
Key (black)12.5%
Color previews
#3951df text on a black background
contrast 3.42:1
Card sample
#3951df text on a white background
contrast 6.15:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3951df;
Background color
Panel with #3951df background
background-color: #3951df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3951df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 81, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 81, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3951df; background: linear-gradient(135deg, #3951df, #9039DF);