#664c21
a dark, vivid orange · warm · closest name: sienna
RGB
102, 76, 33
HSL
37°, 51%, 27%
CMYK
0, 26, 68, 60
Luminance
0.0810
Every format
| HEX | #664c21 |
| RGB | rgb(102, 76, 33) |
| HSL | hsl(37, 51%, 27%) |
| CMYK | cmyk(0%, 26%, 68%, 60%) |
| LAB | lab(34.2 5.8 29.2) |
| LCH | lch(34.2 29.8 78.8) |
| OKLCH | oklch(0.435 0.069 77.8) |
Copy-ready code
/* CSS */
color: #664c21;
background-color: #664c21;
/* Tailwind (arbitrary) */
class="text-[#664c21] bg-[#664c21]"
/* SCSS */
$brand: #664c21;
/* SwiftUI */
Color(red: 0.400, green: 0.298, blue: 0.129)
/* Android */
Color.parseColor("#664c21")Accessibility — WCAG contrast
Aa
#664c21 on white: 8.01:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#664c21 on black: 2.62:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green29.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta25.5%
Yellow67.6%
Key (black)60.0%
Color previews
#664c21 text on a black background
contrast 2.62:1
Card sample
#664c21 text on a white background
contrast 8.01:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #664c21;
Background color
Panel with #664c21 background
background-color: #664c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #664c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 76, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 76, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #664c21; background: linear-gradient(135deg, #664c21, #526621);