#3fdf00
a dark, electric green · cool · closest name: lime
RGB
63, 223, 0
HSL
103°, 100%, 44%
CMYK
72, 0, 100, 13
Luminance
0.5383
Every format
| HEX | #3fdf00 |
| RGB | rgb(63, 223, 0) |
| HSL | hsl(103, 100%, 44%) |
| CMYK | cmyk(72%, 0%, 100%, 13%) |
| LAB | lab(78.4 -72.3 75.9) |
| LCH | lch(78.4 104.8 133.6) |
| OKLCH | oklch(0.790 0.257 140.5) |
Copy-ready code
/* CSS */
color: #3fdf00;
background-color: #3fdf00;
/* Tailwind (arbitrary) */
class="text-[#3fdf00] bg-[#3fdf00]"
/* SCSS */
$brand: #3fdf00;
/* SwiftUI */
Color(red: 0.247, green: 0.875, blue: 0.000)
/* Android */
Color.parseColor("#3fdf00")Accessibility — WCAG contrast
Aa
#3fdf00 on white: 1.78:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#3fdf00 on black: 11.77:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green87.5%
Blue0.0%
CMYK percentages
Cyan71.7%
Magenta0.0%
Yellow100.0%
Key (black)12.5%
Color previews
#3fdf00 text on a black background
contrast 11.77:1
Card sample
#3fdf00 text on a white background
contrast 1.78:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3fdf00;
Background color
Panel with #3fdf00 background
background-color: #3fdf00;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3fdf00;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 223, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 223, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3fdf00; background: linear-gradient(135deg, #3fdf00, #00DF55);