#66aa11
a dark, electric green · cool · closest name: olivedrab
RGB
102, 170, 17
HSL
87°, 82%, 37%
CMYK
40, 0, 90, 33
Luminance
0.3161
Every format
| HEX | #66aa11 |
| RGB | rgb(102, 170, 17) |
| HSL | hsl(87, 82%, 37%) |
| CMYK | cmyk(40%, 0%, 90%, 33%) |
| LAB | lab(63.0 -43.4 62.0) |
| LCH | lch(63.0 75.7 125.0) |
| OKLCH | oklch(0.667 0.182 132.6) |
Copy-ready code
/* CSS */
color: #66aa11;
background-color: #66aa11;
/* Tailwind (arbitrary) */
class="text-[#66aa11] bg-[#66aa11]"
/* SCSS */
$brand: #66aa11;
/* SwiftUI */
Color(red: 0.400, green: 0.667, blue: 0.067)
/* Android */
Color.parseColor("#66aa11")Accessibility — WCAG contrast
Aa
#66aa11 on white: 2.87:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66aa11 on black: 7.32:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green66.7%
Blue6.7%
CMYK percentages
Cyan40.0%
Magenta0.0%
Yellow90.0%
Key (black)33.3%
Color previews
#66aa11 text on a black background
contrast 7.32:1
Card sample
#66aa11 text on a white background
contrast 2.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66aa11;
Background color
Panel with #66aa11 background
background-color: #66aa11;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66aa11;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 170, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 170, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66aa11; background: linear-gradient(135deg, #66aa11, #11AA22);