#ad3521
a dark, vivid red · warm · closest name: firebrick
RGB
173, 53, 33
HSL
9°, 68%, 40%
CMYK
0, 69, 81, 32
Luminance
0.1154
Every format
| HEX | #ad3521 |
| RGB | rgb(173, 53, 33) |
| HSL | hsl(9, 68%, 40%) |
| CMYK | cmyk(0%, 69%, 81%, 32%) |
| LAB | lab(40.5 47.8 39.2) |
| LCH | lch(40.5 61.8 39.4) |
| OKLCH | oklch(0.505 0.160 32.0) |
Copy-ready code
/* CSS */
color: #ad3521;
background-color: #ad3521;
/* Tailwind (arbitrary) */
class="text-[#ad3521] bg-[#ad3521]"
/* SCSS */
$brand: #ad3521;
/* SwiftUI */
Color(red: 0.678, green: 0.208, blue: 0.129)
/* Android */
Color.parseColor("#ad3521")Accessibility — WCAG contrast
Aa
#ad3521 on white: 6.35:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ad3521 on black: 3.31:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.8%
Green20.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta69.4%
Yellow80.9%
Key (black)32.2%
Color previews
#ad3521 text on a black background
contrast 3.31:1
Card sample
#ad3521 text on a white background
contrast 6.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ad3521;
Background color
Panel with #ad3521 background
background-color: #ad3521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ad3521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(173, 53, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 53, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ad3521; background: linear-gradient(135deg, #ad3521, #AD9221);