#4ef521
a balanced, electric green · cool · closest name: lime
RGB
78, 245, 33
HSL
107°, 91%, 55%
CMYK
68, 0, 87, 4
Luminance
0.6703
Every format
| HEX | #4ef521 |
| RGB | rgb(78, 245, 33) |
| HSL | hsl(107, 91%, 55%) |
| CMYK | cmyk(68%, 0%, 87%, 4%) |
| LAB | lab(85.5 -75.6 77.9) |
| LCH | lch(85.5 108.5 134.1) |
| OKLCH | oklch(0.851 0.268 140.6) |
Copy-ready code
/* CSS */
color: #4ef521;
background-color: #4ef521;
/* Tailwind (arbitrary) */
class="text-[#4ef521] bg-[#4ef521]"
/* SCSS */
$brand: #4ef521;
/* SwiftUI */
Color(red: 0.306, green: 0.961, blue: 0.129)
/* Android */
Color.parseColor("#4ef521")Accessibility — WCAG contrast
Aa
#4ef521 on white: 1.46:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#4ef521 on black: 14.41:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red30.6%
Green96.1%
Blue12.9%
CMYK percentages
Cyan68.2%
Magenta0.0%
Yellow86.5%
Key (black)3.9%
Color previews
#4ef521 text on a black background
contrast 14.41:1
Card sample
#4ef521 text on a white background
contrast 1.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4ef521;
Background color
Panel with #4ef521 background
background-color: #4ef521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4ef521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(78, 245, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(78, 245, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4ef521; background: linear-gradient(135deg, #4ef521, #21F581);