#66b310
a dark, electric green · cool · closest name: forestgreen
RGB
102, 179, 16
HSL
88°, 84%, 38%
CMYK
43, 0, 91, 30
Luminance
0.3510
Every format
| HEX | #66b310 |
| RGB | rgb(102, 179, 16) |
| HSL | hsl(88, 84%, 38%) |
| CMYK | cmyk(43%, 0%, 91%, 30%) |
| LAB | lab(65.8 -47.1 64.5) |
| LCH | lch(65.8 79.9 126.2) |
| OKLCH | oklch(0.690 0.193 133.7) |
Copy-ready code
/* CSS */
color: #66b310;
background-color: #66b310;
/* Tailwind (arbitrary) */
class="text-[#66b310] bg-[#66b310]"
/* SCSS */
$brand: #66b310;
/* SwiftUI */
Color(red: 0.400, green: 0.702, blue: 0.063)
/* Android */
Color.parseColor("#66b310")Accessibility — WCAG contrast
Aa
#66b310 on white: 2.62:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66b310 on black: 8.02:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green70.2%
Blue6.3%
CMYK percentages
Cyan43.0%
Magenta0.0%
Yellow91.1%
Key (black)29.8%
Color previews
#66b310 text on a black background
contrast 8.02:1
Card sample
#66b310 text on a white background
contrast 2.62:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66b310;
Background color
Panel with #66b310 background
background-color: #66b310;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66b310;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 179, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 179, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66b310; background: linear-gradient(135deg, #66b310, #10B327);