#663b21
a dark, vivid orange · warm · closest name: sienna
RGB
102, 59, 33
HSL
23°, 51%, 27%
CMYK
0, 42, 68, 60
Luminance
0.0606
Every format
| HEX | #663b21 |
| RGB | rgb(102, 59, 33) |
| HSL | hsl(23, 51%, 27%) |
| CMYK | cmyk(0%, 42%, 68%, 60%) |
| LAB | lab(29.6 16.3 23.9) |
| LCH | lch(29.6 28.9 55.7) |
| OKLCH | oklch(0.399 0.072 50.6) |
Copy-ready code
/* CSS */
color: #663b21;
background-color: #663b21;
/* Tailwind (arbitrary) */
class="text-[#663b21] bg-[#663b21]"
/* SCSS */
$brand: #663b21;
/* SwiftUI */
Color(red: 0.400, green: 0.231, blue: 0.129)
/* Android */
Color.parseColor("#663b21")Accessibility — WCAG contrast
Aa
#663b21 on white: 9.49:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#663b21 on black: 2.21:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green23.1%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta42.2%
Yellow67.6%
Key (black)60.0%
Color previews
#663b21 text on a black background
contrast 2.21:1
Card sample
#663b21 text on a white background
contrast 9.49:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #663b21;
Background color
Panel with #663b21 background
background-color: #663b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #663b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 59, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 59, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #663b21; background: linear-gradient(135deg, #663b21, #636621);