#28e921
a balanced, electric green · cool · closest name: lime
RGB
40, 233, 33
HSL
118°, 82%, 52%
CMYK
83, 0, 86, 9
Luminance
0.5884
Every format
| HEX | #28e921 |
| RGB | rgb(40, 233, 33) |
| HSL | hsl(118, 82%, 52%) |
| CMYK | cmyk(83%, 0%, 86%, 9%) |
| LAB | lab(81.2 -77.5 73.9) |
| LCH | lch(81.2 107.0 136.4) |
| OKLCH | oklch(0.813 0.266 142.4) |
Copy-ready code
/* CSS */
color: #28e921;
background-color: #28e921;
/* Tailwind (arbitrary) */
class="text-[#28e921] bg-[#28e921]"
/* SCSS */
$brand: #28e921;
/* SwiftUI */
Color(red: 0.157, green: 0.914, blue: 0.129)
/* Android */
Color.parseColor("#28e921")Accessibility — WCAG contrast
Aa
#28e921 on white: 1.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28e921 on black: 12.77:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green91.4%
Blue12.9%
CMYK percentages
Cyan82.8%
Magenta0.0%
Yellow85.8%
Key (black)8.6%
Color previews
#28e921 text on a black background
contrast 12.77:1
Card sample
#28e921 text on a white background
contrast 1.64:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28e921;
Background color
Panel with #28e921 background
background-color: #28e921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28e921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 233, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 233, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28e921; background: linear-gradient(135deg, #28e921, #21E99F);