#ac2821
a dark, vivid red · warm · closest name: firebrick
RGB
172, 40, 33
HSL
3°, 68%, 40%
CMYK
0, 77, 81, 33
Luminance
0.1040
Every format
| HEX | #ac2821 |
| RGB | rgb(172, 40, 33) |
| HSL | hsl(3, 68%, 40%) |
| CMYK | cmyk(0%, 77%, 81%, 33%) |
| LAB | lab(38.5 52.3 37.2) |
| LCH | lch(38.5 64.2 35.5) |
| OKLCH | oklch(0.490 0.170 28.3) |
Copy-ready code
/* CSS */
color: #ac2821;
background-color: #ac2821;
/* Tailwind (arbitrary) */
class="text-[#ac2821] bg-[#ac2821]"
/* SCSS */
$brand: #ac2821;
/* SwiftUI */
Color(red: 0.675, green: 0.157, blue: 0.129)
/* Android */
Color.parseColor("#ac2821")Accessibility — WCAG contrast
Aa
#ac2821 on white: 6.82:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac2821 on black: 3.08:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green15.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta76.7%
Yellow80.8%
Key (black)32.5%
Color previews
#ac2821 text on a black background
contrast 3.08:1
Card sample
#ac2821 text on a white background
contrast 6.82:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac2821;
Background color
Panel with #ac2821 background
background-color: #ac2821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac2821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 40, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 40, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac2821; background: linear-gradient(135deg, #ac2821, #AC8521);