#3f09df
a balanced, electric violet · warm · closest name: blue
RGB
63, 9, 223
HSL
255°, 92%, 46%
CMYK
72, 96, 0, 13
Luminance
0.0658
Every format
| HEX | #3f09df |
| RGB | rgb(63, 9, 223) |
| HSL | hsl(255, 92%, 46%) |
| CMYK | cmyk(72%, 96%, 0%, 13%) |
| LAB | lab(30.8 71.1 -92.1) |
| LCH | lch(30.8 116.3 307.7) |
| OKLCH | oklch(0.437 0.267 276.3) |
Copy-ready code
/* CSS */
color: #3f09df;
background-color: #3f09df;
/* Tailwind (arbitrary) */
class="text-[#3f09df] bg-[#3f09df]"
/* SCSS */
$brand: #3f09df;
/* SwiftUI */
Color(red: 0.247, green: 0.035, blue: 0.875)
/* Android */
Color.parseColor("#3f09df")Accessibility — WCAG contrast
Aa
#3f09df on white: 9.07:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f09df on black: 2.32:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green3.5%
Blue87.5%
CMYK percentages
Cyan71.7%
Magenta96.0%
Yellow0.0%
Key (black)12.5%
Color previews
#3f09df text on a black background
contrast 2.32:1
Card sample
#3f09df text on a white background
contrast 9.07:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f09df;
Background color
Panel with #3f09df background
background-color: #3f09df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f09df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 9, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 9, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f09df; background: linear-gradient(135deg, #3f09df, #CE09DF);