#66ff57
a light, electric green · cool · closest name: lime
RGB
102, 255, 87
HSL
115°, 100%, 67%
CMYK
60, 0, 66, 0
Luminance
0.7503
Every format
| HEX | #66ff57 |
| RGB | rgb(102, 255, 87) |
| HSL | hsl(115, 100%, 67%) |
| CMYK | cmyk(60%, 0%, 66%, 0%) |
| LAB | lab(89.4 -70.6 65.8) |
| LCH | lch(89.4 96.5 137.0) |
| OKLCH | oklch(0.885 0.245 141.8) |
Copy-ready code
/* CSS */
color: #66ff57;
background-color: #66ff57;
/* Tailwind (arbitrary) */
class="text-[#66ff57] bg-[#66ff57]"
/* SCSS */
$brand: #66ff57;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.341)
/* Android */
Color.parseColor("#66ff57")Accessibility — WCAG contrast
Aa
#66ff57 on white: 1.31:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ff57 on black: 16.01:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue34.1%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow65.9%
Key (black)0.0%
Color previews
#66ff57 text on a black background
contrast 16.01:1
Card sample
#66ff57 text on a white background
contrast 1.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ff57;
Background color
Panel with #66ff57 background
background-color: #66ff57;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ff57;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 87, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 87, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ff57; background: linear-gradient(135deg, #66ff57, #57FFB8);