#3f4cb2
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 76, 178
HSL
233°, 48%, 47%
CMYK
65, 57, 0, 30
Luminance
0.0944
Every format
| HEX | #3f4cb2 |
| RGB | rgb(63, 76, 178) |
| HSL | hsl(233, 48%, 47%) |
| CMYK | cmyk(65%, 57%, 0%, 30%) |
| LAB | lab(36.8 27.8 -56.0) |
| LCH | lch(36.8 62.5 296.4) |
| OKLCH | oklch(0.466 0.161 273.0) |
Copy-ready code
/* CSS */
color: #3f4cb2;
background-color: #3f4cb2;
/* Tailwind (arbitrary) */
class="text-[#3f4cb2] bg-[#3f4cb2]"
/* SCSS */
$brand: #3f4cb2;
/* SwiftUI */
Color(red: 0.247, green: 0.298, blue: 0.698)
/* Android */
Color.parseColor("#3f4cb2")Accessibility — WCAG contrast
Aa
#3f4cb2 on white: 7.27:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f4cb2 on black: 2.89:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green29.8%
Blue69.8%
CMYK percentages
Cyan64.6%
Magenta57.3%
Yellow0.0%
Key (black)30.2%
Color previews
#3f4cb2 text on a black background
contrast 2.89:1
Card sample
#3f4cb2 text on a white background
contrast 7.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4cb2;
Background color
Panel with #3f4cb2 background
background-color: #3f4cb2;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4cb2;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 76, 178, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 76, 178, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4cb2; background: linear-gradient(135deg, #3f4cb2, #7F3FB2);