#3f4fd9
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 79, 217
HSL
234°, 67%, 55%
CMYK
71, 64, 0, 15
Luminance
0.1166
Every format
| HEX | #3f4fd9 |
| RGB | rgb(63, 79, 217) |
| HSL | hsl(234, 67%, 55%) |
| CMYK | cmyk(71%, 64%, 0%, 15%) |
| LAB | lab(40.7 39.5 -72.4) |
| LCH | lch(40.7 82.5 298.6) |
| OKLCH | oklch(0.504 0.209 271.4) |
Copy-ready code
/* CSS */
color: #3f4fd9;
background-color: #3f4fd9;
/* Tailwind (arbitrary) */
class="text-[#3f4fd9] bg-[#3f4fd9]"
/* SCSS */
$brand: #3f4fd9;
/* SwiftUI */
Color(red: 0.247, green: 0.310, blue: 0.851)
/* Android */
Color.parseColor("#3f4fd9")Accessibility — WCAG contrast
Aa
#3f4fd9 on white: 6.30:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4fd9 on black: 3.33:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green31.0%
Blue85.1%
CMYK percentages
Cyan71.0%
Magenta63.6%
Yellow0.0%
Key (black)14.9%
Color previews
#3f4fd9 text on a black background
contrast 3.33:1
Card sample
#3f4fd9 text on a white background
contrast 6.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4fd9;
Background color
Panel with #3f4fd9 background
background-color: #3f4fd9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4fd9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 79, 217, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 79, 217, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4fd9; background: linear-gradient(135deg, #3f4fd9, #963FD9);