#ac3821
a dark, vivid red · warm · closest name: firebrick
RGB
172, 56, 33
HSL
10°, 68%, 40%
CMYK
0, 67, 81, 33
Luminance
0.1171
Every format
| HEX | #ac3821 |
| RGB | rgb(172, 56, 33) |
| HSL | hsl(10, 68%, 40%) |
| CMYK | cmyk(0%, 67%, 81%, 33%) |
| LAB | lab(40.8 46.2 39.4) |
| LCH | lch(40.8 60.7 40.5) |
| OKLCH | oklch(0.507 0.156 33.1) |
Copy-ready code
/* CSS */
color: #ac3821;
background-color: #ac3821;
/* Tailwind (arbitrary) */
class="text-[#ac3821] bg-[#ac3821]"
/* SCSS */
$brand: #ac3821;
/* SwiftUI */
Color(red: 0.675, green: 0.220, blue: 0.129)
/* Android */
Color.parseColor("#ac3821")Accessibility — WCAG contrast
Aa
#ac3821 on white: 6.28:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac3821 on black: 3.34:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green22.0%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta67.4%
Yellow80.8%
Key (black)32.5%
Color previews
#ac3821 text on a black background
contrast 3.34:1
Card sample
#ac3821 text on a white background
contrast 6.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac3821;
Background color
Panel with #ac3821 background
background-color: #ac3821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac3821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 56, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 56, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac3821; background: linear-gradient(135deg, #ac3821, #AC9521);