#66b621
a dark, vivid green · cool · closest name: forestgreen
RGB
102, 182, 33
HSL
92°, 69%, 42%
CMYK
44, 0, 82, 29
Luminance
0.3639
Every format
| HEX | #66b621 |
| RGB | rgb(102, 182, 33) |
| HSL | hsl(92, 69%, 42%) |
| CMYK | cmyk(44%, 0%, 82%, 29%) |
| LAB | lab(66.8 -47.8 61.6) |
| LCH | lch(66.8 78.0 127.8) |
| OKLCH | oklch(0.698 0.191 134.7) |
Copy-ready code
/* CSS */
color: #66b621;
background-color: #66b621;
/* Tailwind (arbitrary) */
class="text-[#66b621] bg-[#66b621]"
/* SCSS */
$brand: #66b621;
/* SwiftUI */
Color(red: 0.400, green: 0.714, blue: 0.129)
/* Android */
Color.parseColor("#66b621")Accessibility — WCAG contrast
Aa
#66b621 on white: 2.54:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66b621 on black: 8.28:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green71.4%
Blue12.9%
CMYK percentages
Cyan44.0%
Magenta0.0%
Yellow81.9%
Key (black)28.6%
Color previews
#66b621 text on a black background
contrast 8.28:1
Card sample
#66b621 text on a white background
contrast 2.54:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66b621;
Background color
Panel with #66b621 background
background-color: #66b621;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66b621;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 182, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 182, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66b621; background: linear-gradient(135deg, #66b621, #21B63F);