#66bb00
a dark, electric green · cool · closest name: green
RGB
102, 187, 0
HSL
87°, 100%, 37%
CMYK
46, 0, 100, 27
Luminance
0.3837
Every format
| HEX | #66bb00 |
| RGB | rgb(102, 187, 0) |
| HSL | hsl(87, 100%, 37%) |
| CMYK | cmyk(46%, 0%, 100%, 27%) |
| LAB | lab(68.3 -50.6 68.5) |
| LCH | lch(68.3 85.1 126.5) |
| OKLCH | oklch(0.710 0.205 134.2) |
Copy-ready code
/* CSS */
color: #66bb00;
background-color: #66bb00;
/* Tailwind (arbitrary) */
class="text-[#66bb00] bg-[#66bb00]"
/* SCSS */
$brand: #66bb00;
/* SwiftUI */
Color(red: 0.400, green: 0.733, blue: 0.000)
/* Android */
Color.parseColor("#66bb00")Accessibility — WCAG contrast
Aa
#66bb00 on white: 2.42:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66bb00 on black: 8.67:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green73.3%
Blue0.0%
CMYK percentages
Cyan45.5%
Magenta0.0%
Yellow100.0%
Key (black)26.7%
Color previews
#66bb00 text on a black background
contrast 8.67:1
Card sample
#66bb00 text on a white background
contrast 2.42:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66bb00;
Background color
Panel with #66bb00 background
background-color: #66bb00;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66bb00;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 187, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 187, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66bb00; background: linear-gradient(135deg, #66bb00, #00BB17);