#66ff33
a balanced, electric green · cool · closest name: lime
RGB
102, 255, 51
HSL
105°, 100%, 60%
CMYK
60, 0, 80, 0
Luminance
0.7458
Every format
| HEX | #66ff33 |
| RGB | rgb(102, 255, 51) |
| HSL | hsl(105, 100%, 60%) |
| CMYK | cmyk(60%, 0%, 80%, 0%) |
| LAB | lab(89.2 -73.1 77.3) |
| LCH | lch(89.2 106.4 133.4) |
| OKLCH | oklch(0.883 0.264 139.6) |
Copy-ready code
/* CSS */
color: #66ff33;
background-color: #66ff33;
/* Tailwind (arbitrary) */
class="text-[#66ff33] bg-[#66ff33]"
/* SCSS */
$brand: #66ff33;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.200)
/* Android */
Color.parseColor("#66ff33")Accessibility — WCAG contrast
Aa
#66ff33 on white: 1.32:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ff33 on black: 15.92:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue20.0%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow80.0%
Key (black)0.0%
Color previews
#66ff33 text on a black background
contrast 15.92:1
Card sample
#66ff33 text on a white background
contrast 1.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ff33;
Background color
Panel with #66ff33 background
background-color: #66ff33;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ff33;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 51, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 51, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ff33; background: linear-gradient(135deg, #66ff33, #33FF88);