#66ac00
a dark, electric green · cool · closest name: green
RGB
102, 172, 0
HSL
84°, 100%, 34%
CMYK
41, 0, 100, 33
Luminance
0.3233
Every format
| HEX | #66ac00 |
| RGB | rgb(102, 172, 0) |
| HSL | hsl(84, 100%, 34%) |
| CMYK | cmyk(41%, 0%, 100%, 33%) |
| LAB | lab(63.6 -44.6 64.8) |
| LCH | lch(63.6 78.7 124.5) |
| OKLCH | oklch(0.671 0.188 132.5) |
Copy-ready code
/* CSS */
color: #66ac00;
background-color: #66ac00;
/* Tailwind (arbitrary) */
class="text-[#66ac00] bg-[#66ac00]"
/* SCSS */
$brand: #66ac00;
/* SwiftUI */
Color(red: 0.400, green: 0.675, blue: 0.000)
/* Android */
Color.parseColor("#66ac00")Accessibility — WCAG contrast
Aa
#66ac00 on white: 2.81:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ac00 on black: 7.47:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green67.5%
Blue0.0%
CMYK percentages
Cyan40.7%
Magenta0.0%
Yellow100.0%
Key (black)32.5%
Color previews
#66ac00 text on a black background
contrast 7.47:1
Card sample
#66ac00 text on a white background
contrast 2.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ac00;
Background color
Panel with #66ac00 background
background-color: #66ac00;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ac00;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 172, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 172, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ac00; background: linear-gradient(135deg, #66ac00, #00AC0D);