#ac1b28
a dark, vivid red · warm · closest name: firebrick
RGB
172, 27, 40
HSL
355°, 73%, 39%
CMYK
0, 84, 77, 33
Luminance
0.0971
Every format
| HEX | #ac1b28 |
| RGB | rgb(172, 27, 40) |
| HSL | hsl(355, 73%, 39%) |
| CMYK | cmyk(0%, 84%, 77%, 33%) |
| LAB | lab(37.3 56.2 31.9) |
| LCH | lch(37.3 64.6 29.6) |
| OKLCH | oklch(0.481 0.178 23.5) |
Copy-ready code
/* CSS */
color: #ac1b28;
background-color: #ac1b28;
/* Tailwind (arbitrary) */
class="text-[#ac1b28] bg-[#ac1b28]"
/* SCSS */
$brand: #ac1b28;
/* SwiftUI */
Color(red: 0.675, green: 0.106, blue: 0.157)
/* Android */
Color.parseColor("#ac1b28")Accessibility — WCAG contrast
Aa
#ac1b28 on white: 7.14:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#ac1b28 on black: 2.94:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green10.6%
Blue15.7%
CMYK percentages
Cyan0.0%
Magenta84.3%
Yellow76.7%
Key (black)32.5%
Color previews
#ac1b28 text on a black background
contrast 2.94:1
Card sample
#ac1b28 text on a white background
contrast 7.14:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac1b28;
Background color
Panel with #ac1b28 background
background-color: #ac1b28;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac1b28;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 27, 40, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 27, 40, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac1b28; background: linear-gradient(135deg, #ac1b28, #AC6F1B);