#666c21
a dark, vivid yellow · cool · closest name: olive
RGB
102, 108, 33
HSL
65°, 53%, 28%
CMYK
6, 0, 69, 58
Luminance
0.1366
Every format
| HEX | #666c21 |
| RGB | rgb(102, 108, 33) |
| HSL | hsl(65, 53%, 28%) |
| CMYK | cmyk(6%, 0%, 69%, 58%) |
| LAB | lab(43.7 -13.0 39.5) |
| LCH | lch(43.7 41.5 108.2) |
| OKLCH | oklch(0.510 0.097 113.7) |
Copy-ready code
/* CSS */
color: #666c21;
background-color: #666c21;
/* Tailwind (arbitrary) */
class="text-[#666c21] bg-[#666c21]"
/* SCSS */
$brand: #666c21;
/* SwiftUI */
Color(red: 0.400, green: 0.424, blue: 0.129)
/* Android */
Color.parseColor("#666c21")Accessibility — WCAG contrast
Aa
#666c21 on white: 5.63:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#666c21 on black: 3.73:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green42.4%
Blue12.9%
CMYK percentages
Cyan5.6%
Magenta0.0%
Yellow69.4%
Key (black)57.6%
Color previews
#666c21 text on a black background
contrast 3.73:1
Card sample
#666c21 text on a white background
contrast 5.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #666c21;
Background color
Panel with #666c21 background
background-color: #666c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #666c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 108, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 108, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #666c21; background: linear-gradient(135deg, #666c21, #346C21);