#4fef21
a balanced, electric green · cool · closest name: lime
RGB
79, 239, 33
HSL
107°, 87%, 53%
CMYK
67, 0, 86, 6
Luminance
0.6351
Every format
| HEX | #4fef21 |
| RGB | rgb(79, 239, 33) |
| HSL | hsl(107, 87%, 53%) |
| CMYK | cmyk(67%, 0%, 86%, 6%) |
| LAB | lab(83.7 -73.6 76.3) |
| LCH | lch(83.7 106.0 133.9) |
| OKLCH | oklch(0.836 0.262 140.4) |
Copy-ready code
/* CSS */
color: #4fef21;
background-color: #4fef21;
/* Tailwind (arbitrary) */
class="text-[#4fef21] bg-[#4fef21]"
/* SCSS */
$brand: #4fef21;
/* SwiftUI */
Color(red: 0.310, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#4fef21")Accessibility — WCAG contrast
Aa
#4fef21 on white: 1.53:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#4fef21 on black: 13.70:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.0%
Green93.7%
Blue12.9%
CMYK percentages
Cyan66.9%
Magenta0.0%
Yellow86.2%
Key (black)6.3%
Color previews
#4fef21 text on a black background
contrast 13.70:1
Card sample
#4fef21 text on a white background
contrast 1.53:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4fef21;
Background color
Panel with #4fef21 background
background-color: #4fef21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4fef21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(79, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4fef21; background: linear-gradient(135deg, #4fef21, #21EF7C);