#3f00df
a dark, electric violet · warm · closest name: blue
RGB
63, 0, 223
HSL
257°, 100%, 44%
CMYK
72, 100, 0, 13
Luminance
0.0638
Every format
| HEX | #3f00df |
| RGB | rgb(63, 0, 223) |
| HSL | hsl(257, 100%, 44%) |
| CMYK | cmyk(72%, 100%, 0%, 13%) |
| LAB | lab(30.4 72.5 -92.9) |
| LCH | lch(30.4 117.8 308.0) |
| OKLCH | oklch(0.434 0.270 276.5) |
Copy-ready code
/* CSS */
color: #3f00df;
background-color: #3f00df;
/* Tailwind (arbitrary) */
class="text-[#3f00df] bg-[#3f00df]"
/* SCSS */
$brand: #3f00df;
/* SwiftUI */
Color(red: 0.247, green: 0.000, blue: 0.875)
/* Android */
Color.parseColor("#3f00df")Accessibility — WCAG contrast
Aa
#3f00df on white: 9.22:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f00df on black: 2.28:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green0.0%
Blue87.5%
CMYK percentages
Cyan71.7%
Magenta100.0%
Yellow0.0%
Key (black)12.5%
Color previews
#3f00df text on a black background
contrast 2.28:1
Card sample
#3f00df text on a white background
contrast 9.22:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f00df;
Background color
Panel with #3f00df background
background-color: #3f00df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f00df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 0, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 0, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f00df; background: linear-gradient(135deg, #3f00df, #D400DF);