#ac1d21
a dark, vivid red · warm · “firebrick”
RGB
172, 29, 33
HSL
358°, 71%, 39%
CMYK
0, 83, 81, 33
Luminance
0.0976
Every format
| HEX | #ac1d21 |
| RGB | rgb(172, 29, 33) |
| HSL | hsl(358, 71%, 39%) |
| CMYK | cmyk(0%, 83%, 81%, 33%) |
| LAB | lab(37.4 55.5 36.1) |
| LCH | lch(37.4 66.2 33.1) |
| OKLCH | oklch(0.482 0.177 26.0) |
Copy-ready code
/* CSS */
color: #ac1d21;
background-color: #ac1d21;
/* Tailwind (arbitrary) */
class="text-[#ac1d21] bg-[#ac1d21]"
/* SCSS */
$brand: #ac1d21;
/* SwiftUI */
Color(red: 0.675, green: 0.114, blue: 0.129)
/* Android */
Color.parseColor("#ac1d21")Accessibility — WCAG contrast
Aa
#ac1d21 on white: 7.11:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#ac1d21 on black: 2.95:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green11.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta83.1%
Yellow80.8%
Key (black)32.5%
Color previews
#ac1d21 text on a black background
contrast 2.95:1
Card sample
#ac1d21 text on a white background
contrast 7.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac1d21;
Background color
Panel with #ac1d21 background
background-color: #ac1d21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac1d21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 29, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 29, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac1d21; background: linear-gradient(135deg, #ac1d21, #AC781D);