#3f4eb3
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 78, 179
HSL
232°, 48%, 48%
CMYK
65, 56, 0, 30
Luminance
0.0976
Every format
| HEX | #3f4eb3 |
| RGB | rgb(63, 78, 179) |
| HSL | hsl(232, 48%, 48%) |
| CMYK | cmyk(65%, 56%, 0%, 30%) |
| LAB | lab(37.4 26.8 -55.6) |
| LCH | lch(37.4 61.7 295.7) |
| OKLCH | oklch(0.471 0.160 272.3) |
Copy-ready code
/* CSS */
color: #3f4eb3;
background-color: #3f4eb3;
/* Tailwind (arbitrary) */
class="text-[#3f4eb3] bg-[#3f4eb3]"
/* SCSS */
$brand: #3f4eb3;
/* SwiftUI */
Color(red: 0.247, green: 0.306, blue: 0.702)
/* Android */
Color.parseColor("#3f4eb3")Accessibility — WCAG contrast
Aa
#3f4eb3 on white: 7.11:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f4eb3 on black: 2.95:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green30.6%
Blue70.2%
CMYK percentages
Cyan64.8%
Magenta56.4%
Yellow0.0%
Key (black)29.8%
Color previews
#3f4eb3 text on a black background
contrast 2.95:1
Card sample
#3f4eb3 text on a white background
contrast 7.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4eb3;
Background color
Panel with #3f4eb3 background
background-color: #3f4eb3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4eb3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 78, 179, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 78, 179, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4eb3; background: linear-gradient(135deg, #3f4eb3, #7D3FB3);