#66d157
a balanced, vivid green · cool · closest name: forestgreen
RGB
102, 209, 87
HSL
113°, 57%, 58%
CMYK
51, 0, 58, 18
Luminance
0.4911
Every format
| HEX | #66d157 |
| RGB | rgb(102, 209, 87) |
| HSL | hsl(113, 57%, 58%) |
| CMYK | cmyk(51%, 0%, 58%, 18%) |
| LAB | lab(75.5 -54.1 50.3) |
| LCH | lch(75.5 73.8 137.1) |
| OKLCH | oklch(0.771 0.189 141.3) |
Copy-ready code
/* CSS */
color: #66d157;
background-color: #66d157;
/* Tailwind (arbitrary) */
class="text-[#66d157] bg-[#66d157]"
/* SCSS */
$brand: #66d157;
/* SwiftUI */
Color(red: 0.400, green: 0.820, blue: 0.341)
/* Android */
Color.parseColor("#66d157")Accessibility — WCAG contrast
Aa
#66d157 on white: 1.94:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66d157 on black: 10.82:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green82.0%
Blue34.1%
CMYK percentages
Cyan51.2%
Magenta0.0%
Yellow58.4%
Key (black)18.0%
Color previews
#66d157 text on a black background
contrast 10.82:1
Card sample
#66d157 text on a white background
contrast 1.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66d157;
Background color
Panel with #66d157 background
background-color: #66d157;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66d157;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 209, 87, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 209, 87, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66d157; background: linear-gradient(135deg, #66d157, #57D199);