#66d185
a balanced, vivid green · cool · closest name: aquamarine
RGB
102, 209, 133
HSL
137°, 54%, 61%
CMYK
51, 0, 36, 18
Luminance
0.5012
Every format
| HEX | #66d185 |
| RGB | rgb(102, 209, 133) |
| HSL | hsl(137, 54%, 61%) |
| CMYK | cmyk(51%, 0%, 36%, 18%) |
| LAB | lab(76.1 -47.5 28.5) |
| LCH | lch(76.1 55.4 149.0) |
| OKLCH | oklch(0.778 0.147 151.1) |
Copy-ready code
/* CSS */
color: #66d185;
background-color: #66d185;
/* Tailwind (arbitrary) */
class="text-[#66d185] bg-[#66d185]"
/* SCSS */
$brand: #66d185;
/* SwiftUI */
Color(red: 0.400, green: 0.820, blue: 0.522)
/* Android */
Color.parseColor("#66d185")Accessibility — WCAG contrast
Aa
#66d185 on white: 1.90:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66d185 on black: 11.02:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green82.0%
Blue52.2%
CMYK percentages
Cyan51.2%
Magenta0.0%
Yellow36.4%
Key (black)18.0%
Color previews
#66d185 text on a black background
contrast 11.02:1
Card sample
#66d185 text on a white background
contrast 1.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66d185;
Background color
Panel with #66d185 background
background-color: #66d185;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66d185;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 209, 133, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 209, 133, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66d185; background: linear-gradient(135deg, #66d185, #66D1CC);