#aa3721
a dark, vivid red · warm · closest name: firebrick
RGB
170, 55, 33
HSL
10°, 68%, 40%
CMYK
0, 68, 81, 33
Luminance
0.1139
Every format
| HEX | #aa3721 |
| RGB | rgb(170, 55, 33) |
| HSL | hsl(10, 68%, 40%) |
| CMYK | cmyk(0%, 68%, 81%, 33%) |
| LAB | lab(40.2 45.9 38.8) |
| LCH | lch(40.2 60.1 40.2) |
| OKLCH | oklch(0.502 0.155 32.9) |
Copy-ready code
/* CSS */
color: #aa3721;
background-color: #aa3721;
/* Tailwind (arbitrary) */
class="text-[#aa3721] bg-[#aa3721]"
/* SCSS */
$brand: #aa3721;
/* SwiftUI */
Color(red: 0.667, green: 0.216, blue: 0.129)
/* Android */
Color.parseColor("#aa3721")Accessibility — WCAG contrast
Aa
#aa3721 on white: 6.41:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#aa3721 on black: 3.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red66.7%
Green21.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta67.6%
Yellow80.6%
Key (black)33.3%
Color previews
#aa3721 text on a black background
contrast 3.28:1
Card sample
#aa3721 text on a white background
contrast 6.41:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #aa3721;
Background color
Panel with #aa3721 background
background-color: #aa3721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #aa3721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(170, 55, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(170, 55, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #aa3721; background: linear-gradient(135deg, #aa3721, #AA9221);