#40e721
a balanced, electric green · cool · closest name: lime
RGB
64, 231, 33
HSL
111°, 81%, 52%
CMYK
72, 0, 86, 9
Luminance
0.5835
Every format
| HEX | #40e721 |
| RGB | rgb(64, 231, 33) |
| HSL | hsl(111, 81%, 52%) |
| CMYK | cmyk(72%, 0%, 86%, 9%) |
| LAB | lab(80.9 -73.8 73.8) |
| LCH | lch(80.9 104.3 135.0) |
| OKLCH | oklch(0.812 0.258 141.3) |
Copy-ready code
/* CSS */
color: #40e721;
background-color: #40e721;
/* Tailwind (arbitrary) */
class="text-[#40e721] bg-[#40e721]"
/* SCSS */
$brand: #40e721;
/* SwiftUI */
Color(red: 0.251, green: 0.906, blue: 0.129)
/* Android */
Color.parseColor("#40e721")Accessibility — WCAG contrast
Aa
#40e721 on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40e721 on black: 12.67:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green90.6%
Blue12.9%
CMYK percentages
Cyan72.3%
Magenta0.0%
Yellow85.7%
Key (black)9.4%
Color previews
#40e721 text on a black background
contrast 12.67:1
Card sample
#40e721 text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40e721;
Background color
Panel with #40e721 background
background-color: #40e721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40e721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 231, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 231, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40e721; background: linear-gradient(135deg, #40e721, #21E786);