#4efb21
a balanced, electric green · cool · closest name: lime
RGB
78, 251, 33
HSL
108°, 97%, 56%
CMYK
69, 0, 87, 2
Luminance
0.7072
Every format
| HEX | #4efb21 |
| RGB | rgb(78, 251, 33) |
| HSL | hsl(108, 97%, 56%) |
| CMYK | cmyk(69%, 0%, 87%, 2%) |
| LAB | lab(87.3 -77.4 79.5) |
| LCH | lch(87.3 111.0 134.2) |
| OKLCH | oklch(0.866 0.274 140.7) |
Copy-ready code
/* CSS */
color: #4efb21;
background-color: #4efb21;
/* Tailwind (arbitrary) */
class="text-[#4efb21] bg-[#4efb21]"
/* SCSS */
$brand: #4efb21;
/* SwiftUI */
Color(red: 0.306, green: 0.984, blue: 0.129)
/* Android */
Color.parseColor("#4efb21")Accessibility — WCAG contrast
Aa
#4efb21 on white: 1.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#4efb21 on black: 15.14:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red30.6%
Green98.4%
Blue12.9%
CMYK percentages
Cyan68.9%
Magenta0.0%
Yellow86.9%
Key (black)1.6%
Color previews
#4efb21 text on a black background
contrast 15.14:1
Card sample
#4efb21 text on a white background
contrast 1.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4efb21;
Background color
Panel with #4efb21 background
background-color: #4efb21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4efb21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(78, 251, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(78, 251, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4efb21; background: linear-gradient(135deg, #4efb21, #21FB85);