#66a310
a dark, electric green · cool · closest name: olivedrab
RGB
102, 163, 16
HSL
85°, 82%, 35%
CMYK
37, 0, 90, 36
Luminance
0.2906
Every format
| HEX | #66a310 |
| RGB | rgb(102, 163, 16) |
| HSL | hsl(85, 82%, 35%) |
| CMYK | cmyk(37%, 0%, 90%, 36%) |
| LAB | lab(60.8 -40.5 60.3) |
| LCH | lch(60.8 72.7 123.9) |
| OKLCH | oklch(0.649 0.174 131.5) |
Copy-ready code
/* CSS */
color: #66a310;
background-color: #66a310;
/* Tailwind (arbitrary) */
class="text-[#66a310] bg-[#66a310]"
/* SCSS */
$brand: #66a310;
/* SwiftUI */
Color(red: 0.400, green: 0.639, blue: 0.063)
/* Android */
Color.parseColor("#66a310")Accessibility — WCAG contrast
Aa
#66a310 on white: 3.08:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#66a310 on black: 6.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green63.9%
Blue6.3%
CMYK percentages
Cyan37.4%
Magenta0.0%
Yellow90.2%
Key (black)36.1%
Color previews
#66a310 text on a black background
contrast 6.81:1
Card sample
#66a310 text on a white background
contrast 3.08:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66a310;
Background color
Panel with #66a310 background
background-color: #66a310;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66a310;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 163, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 163, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66a310; background: linear-gradient(135deg, #66a310, #10A31C);