#66df3f
a balanced, vivid green · cool · closest name: lime
RGB
102, 223, 63
HSL
105°, 71%, 56%
CMYK
54, 0, 72, 13
Luminance
0.5596
Every format
| HEX | #66df3f |
| RGB | rgb(102, 223, 63) |
| HSL | hsl(105, 71%, 56%) |
| CMYK | cmyk(54%, 0%, 72%, 13%) |
| LAB | lab(79.6 -61.4 64.4) |
| LCH | lch(79.6 89.0 133.7) |
| OKLCH | oklch(0.804 0.223 139.3) |
Copy-ready code
/* CSS */
color: #66df3f;
background-color: #66df3f;
/* Tailwind (arbitrary) */
class="text-[#66df3f] bg-[#66df3f]"
/* SCSS */
$brand: #66df3f;
/* SwiftUI */
Color(red: 0.400, green: 0.875, blue: 0.247)
/* Android */
Color.parseColor("#66df3f")Accessibility — WCAG contrast
Aa
#66df3f on white: 1.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66df3f on black: 12.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green87.5%
Blue24.7%
CMYK percentages
Cyan54.3%
Magenta0.0%
Yellow71.7%
Key (black)12.5%
Color previews
#66df3f text on a black background
contrast 12.19:1
Card sample
#66df3f text on a white background
contrast 1.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66df3f;
Background color
Panel with #66df3f background
background-color: #66df3f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66df3f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 223, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 223, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66df3f; background: linear-gradient(135deg, #66df3f, #3FDF83);