#3f4fd3
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 79, 211
HSL
234°, 63%, 54%
CMYK
70, 63, 0, 17
Luminance
0.1135
Every format
| HEX | #3f4fd3 |
| RGB | rgb(63, 79, 211) |
| HSL | hsl(234, 63%, 54%) |
| CMYK | cmyk(70%, 63%, 0%, 17%) |
| LAB | lab(40.2 37.4 -69.8) |
| LCH | lch(40.2 79.2 298.2) |
| OKLCH | oklch(0.499 0.202 271.6) |
Copy-ready code
/* CSS */
color: #3f4fd3;
background-color: #3f4fd3;
/* Tailwind (arbitrary) */
class="text-[#3f4fd3] bg-[#3f4fd3]"
/* SCSS */
$brand: #3f4fd3;
/* SwiftUI */
Color(red: 0.247, green: 0.310, blue: 0.827)
/* Android */
Color.parseColor("#3f4fd3")Accessibility — WCAG contrast
Aa
#3f4fd3 on white: 6.42:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4fd3 on black: 3.27:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green31.0%
Blue82.7%
CMYK percentages
Cyan70.1%
Magenta62.6%
Yellow0.0%
Key (black)17.3%
Color previews
#3f4fd3 text on a black background
contrast 3.27:1
Card sample
#3f4fd3 text on a white background
contrast 6.42:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4fd3;
Background color
Panel with #3f4fd3 background
background-color: #3f4fd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4fd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 79, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 79, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4fd3; background: linear-gradient(135deg, #3f4fd3, #923FD3);