#66ab21
a dark, vivid green · cool · closest name: olivedrab
RGB
102, 171, 33
HSL
90°, 68%, 40%
CMYK
40, 0, 81, 33
Luminance
0.3206
Every format
| HEX | #66ab21 |
| RGB | rgb(102, 171, 33) |
| HSL | hsl(90, 68%, 40%) |
| CMYK | cmyk(40%, 0%, 81%, 33%) |
| LAB | lab(63.4 -43.3 58.5) |
| LCH | lch(63.4 72.7 126.5) |
| OKLCH | oklch(0.670 0.177 133.4) |
Copy-ready code
/* CSS */
color: #66ab21;
background-color: #66ab21;
/* Tailwind (arbitrary) */
class="text-[#66ab21] bg-[#66ab21]"
/* SCSS */
$brand: #66ab21;
/* SwiftUI */
Color(red: 0.400, green: 0.671, blue: 0.129)
/* Android */
Color.parseColor("#66ab21")Accessibility — WCAG contrast
Aa
#66ab21 on white: 2.83:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ab21 on black: 7.41:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green67.1%
Blue12.9%
CMYK percentages
Cyan40.4%
Magenta0.0%
Yellow80.7%
Key (black)32.9%
Color previews
#66ab21 text on a black background
contrast 7.41:1
Card sample
#66ab21 text on a white background
contrast 2.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ab21;
Background color
Panel with #66ab21 background
background-color: #66ab21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ab21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 171, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 171, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ab21; background: linear-gradient(135deg, #66ab21, #21AB38);