#66ee99
a light, electric green · cool · closest name: aquamarine
RGB
102, 238, 153
HSL
143°, 80%, 67%
CMYK
57, 0, 36, 7
Luminance
0.6627
Every format
| HEX | #66ee99 |
| RGB | rgb(102, 238, 153) |
| HSL | hsl(143, 80%, 67%) |
| CMYK | cmyk(57%, 0%, 36%, 7%) |
| LAB | lab(85.1 -55.7 30.3) |
| LCH | lch(85.1 63.4 151.5) |
| OKLCH | oklch(0.853 0.169 153.3) |
Copy-ready code
/* CSS */
color: #66ee99;
background-color: #66ee99;
/* Tailwind (arbitrary) */
class="text-[#66ee99] bg-[#66ee99]"
/* SCSS */
$brand: #66ee99;
/* SwiftUI */
Color(red: 0.400, green: 0.933, blue: 0.600)
/* Android */
Color.parseColor("#66ee99")Accessibility — WCAG contrast
Aa
#66ee99 on white: 1.47:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ee99 on black: 14.25:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green93.3%
Blue60.0%
CMYK percentages
Cyan57.1%
Magenta0.0%
Yellow35.7%
Key (black)6.7%
Color previews
#66ee99 text on a black background
contrast 14.25:1
Card sample
#66ee99 text on a white background
contrast 1.47:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ee99;
Background color
Panel with #66ee99 background
background-color: #66ee99;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ee99;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 238, 153, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 238, 153, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ee99; background: linear-gradient(135deg, #66ee99, #66E8EE);