#3f4fd4
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 79, 212
HSL
234°, 63%, 54%
CMYK
70, 63, 0, 17
Luminance
0.1140
Every format
| HEX | #3f4fd4 |
| RGB | rgb(63, 79, 212) |
| HSL | hsl(234, 63%, 54%) |
| CMYK | cmyk(70%, 63%, 0%, 17%) |
| LAB | lab(40.3 37.7 -70.2) |
| LCH | lch(40.3 79.7 298.3) |
| OKLCH | oklch(0.500 0.203 271.5) |
Copy-ready code
/* CSS */
color: #3f4fd4;
background-color: #3f4fd4;
/* Tailwind (arbitrary) */
class="text-[#3f4fd4] bg-[#3f4fd4]"
/* SCSS */
$brand: #3f4fd4;
/* SwiftUI */
Color(red: 0.247, green: 0.310, blue: 0.831)
/* Android */
Color.parseColor("#3f4fd4")Accessibility — WCAG contrast
Aa
#3f4fd4 on white: 6.40:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4fd4 on black: 3.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green31.0%
Blue83.1%
CMYK percentages
Cyan70.3%
Magenta62.7%
Yellow0.0%
Key (black)16.9%
Color previews
#3f4fd4 text on a black background
contrast 3.28:1
Card sample
#3f4fd4 text on a white background
contrast 6.40:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4fd4;
Background color
Panel with #3f4fd4 background
background-color: #3f4fd4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4fd4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 79, 212, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 79, 212, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4fd4; background: linear-gradient(135deg, #3f4fd4, #923FD4);