#66f721
a balanced, electric green · cool · closest name: lime
RGB
102, 247, 33
HSL
101°, 93%, 55%
CMYK
59, 0, 87, 3
Luminance
0.6946
Every format
| HEX | #66f721 |
| RGB | rgb(102, 247, 33) |
| HSL | hsl(101, 93%, 55%) |
| CMYK | cmyk(59%, 0%, 87%, 3%) |
| LAB | lab(86.7 -71.2 79.2) |
| LCH | lch(86.7 106.5 132.0) |
| OKLCH | oklch(0.862 0.262 138.7) |
Copy-ready code
/* CSS */
color: #66f721;
background-color: #66f721;
/* Tailwind (arbitrary) */
class="text-[#66f721] bg-[#66f721]"
/* SCSS */
$brand: #66f721;
/* SwiftUI */
Color(red: 0.400, green: 0.969, blue: 0.129)
/* Android */
Color.parseColor("#66f721")Accessibility — WCAG contrast
Aa
#66f721 on white: 1.41:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66f721 on black: 14.89:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green96.9%
Blue12.9%
CMYK percentages
Cyan58.7%
Magenta0.0%
Yellow86.6%
Key (black)3.1%
Color previews
#66f721 text on a black background
contrast 14.89:1
Card sample
#66f721 text on a white background
contrast 1.41:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66f721;
Background color
Panel with #66f721 background
background-color: #66f721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66f721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 247, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 247, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66f721; background: linear-gradient(135deg, #66f721, #21F76B);