#3909cd
a dark, electric blue · warm · closest name: blue
RGB
57, 9, 205
HSL
255°, 92%, 42%
CMYK
72, 96, 0, 20
Luminance
0.0547
Every format
| HEX | #3909cd |
| RGB | rgb(57, 9, 205) |
| HSL | hsl(255, 92%, 42%) |
| CMYK | cmyk(72%, 96%, 0%, 20%) |
| LAB | lab(28.0 66.5 -86.3) |
| LCH | lch(28.0 109.0 307.6) |
| OKLCH | oklch(0.411 0.251 276.2) |
Copy-ready code
/* CSS */
color: #3909cd;
background-color: #3909cd;
/* Tailwind (arbitrary) */
class="text-[#3909cd] bg-[#3909cd]"
/* SCSS */
$brand: #3909cd;
/* SwiftUI */
Color(red: 0.224, green: 0.035, blue: 0.804)
/* Android */
Color.parseColor("#3909cd")Accessibility — WCAG contrast
Aa
#3909cd on white: 10.03:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3909cd on black: 2.09:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green3.5%
Blue80.4%
CMYK percentages
Cyan72.2%
Magenta95.6%
Yellow0.0%
Key (black)19.6%
Color previews
#3909cd text on a black background
contrast 2.09:1
Card sample
#3909cd text on a white background
contrast 10.03:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3909cd;
Background color
Panel with #3909cd background
background-color: #3909cd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3909cd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 9, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 9, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3909cd; background: linear-gradient(135deg, #3909cd, #BC09CD);