#66bc21
a dark, vivid green · cool · closest name: forestgreen
RGB
102, 188, 33
HSL
93°, 70%, 43%
CMYK
46, 0, 82, 26
Luminance
0.3890
Every format
| HEX | #66bc21 |
| RGB | rgb(102, 188, 33) |
| HSL | hsl(93, 70%, 43%) |
| CMYK | cmyk(46%, 0%, 82%, 26%) |
| LAB | lab(68.7 -50.1 63.3) |
| LCH | lch(68.7 80.7 128.4) |
| OKLCH | oklch(0.713 0.198 135.3) |
Copy-ready code
/* CSS */
color: #66bc21;
background-color: #66bc21;
/* Tailwind (arbitrary) */
class="text-[#66bc21] bg-[#66bc21]"
/* SCSS */
$brand: #66bc21;
/* SwiftUI */
Color(red: 0.400, green: 0.737, blue: 0.129)
/* Android */
Color.parseColor("#66bc21")Accessibility — WCAG contrast
Aa
#66bc21 on white: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66bc21 on black: 8.78:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green73.7%
Blue12.9%
CMYK percentages
Cyan45.7%
Magenta0.0%
Yellow82.4%
Key (black)26.3%
Color previews
#66bc21 text on a black background
contrast 8.78:1
Card sample
#66bc21 text on a white background
contrast 2.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66bc21;
Background color
Panel with #66bc21 background
background-color: #66bc21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66bc21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 188, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 188, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66bc21; background: linear-gradient(135deg, #66bc21, #21BC43);