#66d721
a balanced, vivid green · cool · closest name: lime
RGB
102, 215, 33
HSL
97°, 73%, 49%
CMYK
53, 0, 85, 16
Luminance
0.5154
Every format
| HEX | #66d721 |
| RGB | rgb(102, 215, 33) |
| HSL | hsl(97, 73%, 49%) |
| CMYK | cmyk(53%, 0%, 85%, 16%) |
| LAB | lab(77.0 -60.2 70.7) |
| LCH | lch(77.0 92.9 130.4) |
| OKLCH | oklch(0.782 0.228 137.2) |
Copy-ready code
/* CSS */
color: #66d721;
background-color: #66d721;
/* Tailwind (arbitrary) */
class="text-[#66d721] bg-[#66d721]"
/* SCSS */
$brand: #66d721;
/* SwiftUI */
Color(red: 0.400, green: 0.843, blue: 0.129)
/* Android */
Color.parseColor("#66d721")Accessibility — WCAG contrast
Aa
#66d721 on white: 1.86:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66d721 on black: 11.31:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green84.3%
Blue12.9%
CMYK percentages
Cyan52.6%
Magenta0.0%
Yellow84.7%
Key (black)15.7%
Color previews
#66d721 text on a black background
contrast 11.31:1
Card sample
#66d721 text on a white background
contrast 1.86:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66d721;
Background color
Panel with #66d721 background
background-color: #66d721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66d721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 215, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 215, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66d721; background: linear-gradient(135deg, #66d721, #21D755);