#66bf21
a dark, vivid green · cool · closest name: forestgreen
RGB
102, 191, 33
HSL
94°, 71%, 44%
CMYK
47, 0, 83, 25
Luminance
0.4020
Every format
| HEX | #66bf21 |
| RGB | rgb(102, 191, 33) |
| HSL | hsl(94, 71%, 44%) |
| CMYK | cmyk(47%, 0%, 83%, 25%) |
| LAB | lab(69.6 -51.3 64.1) |
| LCH | lch(69.6 82.1 128.6) |
| OKLCH | oklch(0.721 0.201 135.5) |
Copy-ready code
/* CSS */
color: #66bf21;
background-color: #66bf21;
/* Tailwind (arbitrary) */
class="text-[#66bf21] bg-[#66bf21]"
/* SCSS */
$brand: #66bf21;
/* SwiftUI */
Color(red: 0.400, green: 0.749, blue: 0.129)
/* Android */
Color.parseColor("#66bf21")Accessibility — WCAG contrast
Aa
#66bf21 on white: 2.32:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66bf21 on black: 9.04:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green74.9%
Blue12.9%
CMYK percentages
Cyan46.6%
Magenta0.0%
Yellow82.7%
Key (black)25.1%
Color previews
#66bf21 text on a black background
contrast 9.04:1
Card sample
#66bf21 text on a white background
contrast 2.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66bf21;
Background color
Panel with #66bf21 background
background-color: #66bf21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66bf21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 191, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 191, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66bf21; background: linear-gradient(135deg, #66bf21, #21BF45);