#66dd99
a balanced, vivid green · cool · closest name: aquamarine
RGB
102, 221, 153
HSL
146°, 64%, 63%
CMYK
54, 0, 31, 13
Luminance
0.5684
Every format
| HEX | #66dd99 |
| RGB | rgb(102, 221, 153) |
| HSL | hsl(146, 64%, 63%) |
| CMYK | cmyk(54%, 0%, 31%, 13%) |
| LAB | lab(80.1 -48.8 23.4) |
| LCH | lch(80.1 54.1 154.3) |
| OKLCH | oklch(0.811 0.146 156.0) |
Copy-ready code
/* CSS */
color: #66dd99;
background-color: #66dd99;
/* Tailwind (arbitrary) */
class="text-[#66dd99] bg-[#66dd99]"
/* SCSS */
$brand: #66dd99;
/* SwiftUI */
Color(red: 0.400, green: 0.867, blue: 0.600)
/* Android */
Color.parseColor("#66dd99")Accessibility — WCAG contrast
Aa
#66dd99 on white: 1.70:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66dd99 on black: 12.37:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green86.7%
Blue60.0%
CMYK percentages
Cyan53.8%
Magenta0.0%
Yellow30.8%
Key (black)13.3%
Color previews
#66dd99 text on a black background
contrast 12.37:1
Card sample
#66dd99 text on a white background
contrast 1.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66dd99;
Background color
Panel with #66dd99 background
background-color: #66dd99;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66dd99;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 221, 153, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 221, 153, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66dd99; background: linear-gradient(135deg, #66dd99, #66D2DD);