#3f50cb
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 80, 203
HSL
233°, 57%, 52%
CMYK
69, 61, 0, 20
Luminance
0.1111
Every format
| HEX | #3f50cb |
| RGB | rgb(63, 80, 203) |
| HSL | hsl(233, 57%, 52%) |
| CMYK | cmyk(69%, 61%, 0%, 20%) |
| LAB | lab(39.8 34.0 -65.8) |
| LCH | lch(39.8 74.1 297.3) |
| OKLCH | oklch(0.494 0.190 271.5) |
Copy-ready code
/* CSS */
color: #3f50cb;
background-color: #3f50cb;
/* Tailwind (arbitrary) */
class="text-[#3f50cb] bg-[#3f50cb]"
/* SCSS */
$brand: #3f50cb;
/* SwiftUI */
Color(red: 0.247, green: 0.314, blue: 0.796)
/* Android */
Color.parseColor("#3f50cb")Accessibility — WCAG contrast
Aa
#3f50cb on white: 6.52:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f50cb on black: 3.22:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green31.4%
Blue79.6%
CMYK percentages
Cyan69.0%
Magenta60.6%
Yellow0.0%
Key (black)20.4%
Color previews
#3f50cb text on a black background
contrast 3.22:1
Card sample
#3f50cb text on a white background
contrast 6.52:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f50cb;
Background color
Panel with #3f50cb background
background-color: #3f50cb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f50cb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 80, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 80, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f50cb; background: linear-gradient(135deg, #3f50cb, #8B3FCB);