#ad1d21
a dark, vivid red · warm · “firebrick”
RGB
173, 29, 33
HSL
358°, 71%, 40%
CMYK
0, 83, 81, 32
Luminance
0.0987
Every format
| HEX | #ad1d21 |
| RGB | rgb(173, 29, 33) |
| HSL | hsl(358, 71%, 40%) |
| CMYK | cmyk(0%, 83%, 81%, 32%) |
| LAB | lab(37.6 55.8 36.4) |
| LCH | lch(37.6 66.6 33.1) |
| OKLCH | oklch(0.484 0.178 26.1) |
Copy-ready code
/* CSS */
color: #ad1d21;
background-color: #ad1d21;
/* Tailwind (arbitrary) */
class="text-[#ad1d21] bg-[#ad1d21]"
/* SCSS */
$brand: #ad1d21;
/* SwiftUI */
Color(red: 0.678, green: 0.114, blue: 0.129)
/* Android */
Color.parseColor("#ad1d21")Accessibility — WCAG contrast
Aa
#ad1d21 on white: 7.06:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#ad1d21 on black: 2.97:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.8%
Green11.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta83.2%
Yellow80.9%
Key (black)32.2%
Color previews
#ad1d21 text on a black background
contrast 2.97:1
Card sample
#ad1d21 text on a white background
contrast 7.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ad1d21;
Background color
Panel with #ad1d21 background
background-color: #ad1d21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ad1d21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(173, 29, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 29, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ad1d21; background: linear-gradient(135deg, #ad1d21, #AD791D);