#3f37cd
a balanced, vivid blue · warm · closest name: navy
RGB
63, 55, 205
HSL
243°, 60%, 51%
CMYK
69, 73, 0, 20
Luminance
0.0820
Every format
| HEX | #3f37cd |
| RGB | rgb(63, 55, 205) |
| HSL | hsl(243, 60%, 51%) |
| CMYK | cmyk(69%, 73%, 0%, 20%) |
| LAB | lab(34.4 49.6 -75.8) |
| LCH | lch(34.4 90.5 303.2) |
| OKLCH | oklch(0.456 0.220 275.5) |
Copy-ready code
/* CSS */
color: #3f37cd;
background-color: #3f37cd;
/* Tailwind (arbitrary) */
class="text-[#3f37cd] bg-[#3f37cd]"
/* SCSS */
$brand: #3f37cd;
/* SwiftUI */
Color(red: 0.247, green: 0.216, blue: 0.804)
/* Android */
Color.parseColor("#3f37cd")Accessibility — WCAG contrast
Aa
#3f37cd on white: 7.96:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f37cd on black: 2.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green21.6%
Blue80.4%
CMYK percentages
Cyan69.3%
Magenta73.2%
Yellow0.0%
Key (black)19.6%
Color previews
#3f37cd text on a black background
contrast 2.64:1
Card sample
#3f37cd text on a white background
contrast 7.96:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f37cd;
Background color
Panel with #3f37cd background
background-color: #3f37cd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f37cd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 55, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 55, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f37cd; background: linear-gradient(135deg, #3f37cd, #A337CD);