#66a721
a dark, vivid green · cool · closest name: olivedrab
RGB
102, 167, 33
HSL
89°, 67%, 39%
CMYK
39, 0, 80, 35
Luminance
0.3057
Every format
| HEX | #66a721 |
| RGB | rgb(102, 167, 33) |
| HSL | hsl(89, 67%, 39%) |
| CMYK | cmyk(39%, 0%, 80%, 35%) |
| LAB | lab(62.1 -41.6 57.3) |
| LCH | lch(62.1 70.8 125.9) |
| OKLCH | oklch(0.660 0.173 132.8) |
Copy-ready code
/* CSS */
color: #66a721;
background-color: #66a721;
/* Tailwind (arbitrary) */
class="text-[#66a721] bg-[#66a721]"
/* SCSS */
$brand: #66a721;
/* SwiftUI */
Color(red: 0.400, green: 0.655, blue: 0.129)
/* Android */
Color.parseColor("#66a721")Accessibility — WCAG contrast
Aa
#66a721 on white: 2.95:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66a721 on black: 7.11:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green65.5%
Blue12.9%
CMYK percentages
Cyan38.9%
Magenta0.0%
Yellow80.2%
Key (black)34.5%
Color previews
#66a721 text on a black background
contrast 7.11:1
Card sample
#66a721 text on a white background
contrast 2.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66a721;
Background color
Panel with #66a721 background
background-color: #66a721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66a721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 167, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 167, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66a721; background: linear-gradient(135deg, #66a721, #21A735);