#3900df
a dark, electric violet · warm · closest name: blue
RGB
57, 0, 223
HSL
255°, 100%, 44%
CMYK
74, 100, 0, 13
Luminance
0.0620
Every format
| HEX | #3900df |
| RGB | rgb(57, 0, 223) |
| HSL | hsl(255, 100%, 44%) |
| CMYK | cmyk(74%, 100%, 0%, 13%) |
| LAB | lab(29.9 72.4 -93.6) |
| LCH | lch(29.9 118.3 307.7) |
| OKLCH | oklch(0.430 0.271 274.6) |
Copy-ready code
/* CSS */
color: #3900df;
background-color: #3900df;
/* Tailwind (arbitrary) */
class="text-[#3900df] bg-[#3900df]"
/* SCSS */
$brand: #3900df;
/* SwiftUI */
Color(red: 0.224, green: 0.000, blue: 0.875)
/* Android */
Color.parseColor("#3900df")Accessibility — WCAG contrast
Aa
#3900df on white: 9.38:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3900df on black: 2.24:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green0.0%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta100.0%
Yellow0.0%
Key (black)12.5%
Color previews
#3900df text on a black background
contrast 2.24:1
Card sample
#3900df text on a white background
contrast 9.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3900df;
Background color
Panel with #3900df background
background-color: #3900df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3900df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 0, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 0, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3900df; background: linear-gradient(135deg, #3900df, #CD00DF);