#666600
a deep, electric yellow · cool · closest name: olive
RGB
102, 102, 0
HSL
60°, 100%, 20%
CMYK
0, 0, 100, 60
Luminance
0.1233
Every format
| HEX | #666600 |
| RGB | rgb(102, 102, 0) |
| HSL | hsl(60, 100%, 20%) |
| CMYK | cmyk(0%, 0%, 100%, 60%) |
| LAB | lab(41.7 -11.0 48.2) |
| LCH | lch(41.7 49.5 102.9) |
| OKLCH | oklch(0.494 0.108 109.8) |
Copy-ready code
/* CSS */
color: #666600;
background-color: #666600;
/* Tailwind (arbitrary) */
class="text-[#666600] bg-[#666600]"
/* SCSS */
$brand: #666600;
/* SwiftUI */
Color(red: 0.400, green: 0.400, blue: 0.000)
/* Android */
Color.parseColor("#666600")Accessibility — WCAG contrast
Aa
#666600 on white: 6.06:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#666600 on black: 3.47:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green40.0%
Blue0.0%
CMYK percentages
Cyan0.0%
Magenta0.0%
Yellow100.0%
Key (black)60.0%
Color previews
#666600 text on a black background
contrast 3.47:1
Card sample
#666600 text on a white background
contrast 6.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #666600;
Background color
Panel with #666600 background
background-color: #666600;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #666600;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 102, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 102, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #666600; background: linear-gradient(135deg, #666600, #226600);