#66ff11
a balanced, electric green · cool · closest name: lime
RGB
102, 255, 17
HSL
99°, 100%, 53%
CMYK
60, 0, 93, 0
Luminance
0.7439
Every format
| HEX | #66ff11 |
| RGB | rgb(102, 255, 17) |
| HSL | hsl(99, 100%, 53%) |
| CMYK | cmyk(60%, 0%, 93%, 0%) |
| LAB | lab(89.1 -74.2 83.5) |
| LCH | lch(89.1 111.7 131.6) |
| OKLCH | oklch(0.882 0.273 138.7) |
Copy-ready code
/* CSS */
color: #66ff11;
background-color: #66ff11;
/* Tailwind (arbitrary) */
class="text-[#66ff11] bg-[#66ff11]"
/* SCSS */
$brand: #66ff11;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.067)
/* Android */
Color.parseColor("#66ff11")Accessibility — WCAG contrast
Aa
#66ff11 on white: 1.32:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ff11 on black: 15.88:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue6.7%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow93.3%
Key (black)0.0%
Color previews
#66ff11 text on a black background
contrast 15.88:1
Card sample
#66ff11 text on a white background
contrast 1.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ff11;
Background color
Panel with #66ff11 background
background-color: #66ff11;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ff11;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ff11; background: linear-gradient(135deg, #66ff11, #11FF5B);