#28e721
a balanced, electric green · cool · closest name: lime
RGB
40, 231, 33
HSL
118°, 81%, 52%
CMYK
83, 0, 86, 9
Luminance
0.5771
Every format
| HEX | #28e721 |
| RGB | rgb(40, 231, 33) |
| HSL | hsl(118, 81%, 52%) |
| CMYK | cmyk(83%, 0%, 86%, 9%) |
| LAB | lab(80.6 -76.9 73.3) |
| LCH | lch(80.6 106.3 136.4) |
| OKLCH | oklch(0.808 0.264 142.4) |
Copy-ready code
/* CSS */
color: #28e721;
background-color: #28e721;
/* Tailwind (arbitrary) */
class="text-[#28e721] bg-[#28e721]"
/* SCSS */
$brand: #28e721;
/* SwiftUI */
Color(red: 0.157, green: 0.906, blue: 0.129)
/* Android */
Color.parseColor("#28e721")Accessibility — WCAG contrast
Aa
#28e721 on white: 1.67:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28e721 on black: 12.54:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green90.6%
Blue12.9%
CMYK percentages
Cyan82.7%
Magenta0.0%
Yellow85.7%
Key (black)9.4%
Color previews
#28e721 text on a black background
contrast 12.54:1
Card sample
#28e721 text on a white background
contrast 1.67:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28e721;
Background color
Panel with #28e721 background
background-color: #28e721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28e721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 231, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 231, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28e721; background: linear-gradient(135deg, #28e721, #21E79E);