#ad0a21
a dark, electric red · warm · closest name: firebrick
RGB
173, 10, 33
HSL
352°, 89%, 36%
CMYK
0, 94, 81, 32
Luminance
0.0921
Every format
| HEX | #ad0a21 |
| RGB | rgb(173, 10, 33) |
| HSL | hsl(352, 89%, 36%) |
| CMYK | cmyk(0%, 94%, 81%, 32%) |
| LAB | lab(36.4 59.3 35.1) |
| LCH | lch(36.4 68.9 30.7) |
| OKLCH | oklch(0.475 0.187 23.8) |
Copy-ready code
/* CSS */
color: #ad0a21;
background-color: #ad0a21;
/* Tailwind (arbitrary) */
class="text-[#ad0a21] bg-[#ad0a21]"
/* SCSS */
$brand: #ad0a21;
/* SwiftUI */
Color(red: 0.678, green: 0.039, blue: 0.129)
/* Android */
Color.parseColor("#ad0a21")Accessibility — WCAG contrast
Aa
#ad0a21 on white: 7.39:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#ad0a21 on black: 2.84:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.8%
Green3.9%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta94.2%
Yellow80.9%
Key (black)32.2%
Color previews
#ad0a21 text on a black background
contrast 2.84:1
Card sample
#ad0a21 text on a white background
contrast 7.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ad0a21;
Background color
Panel with #ad0a21 background
background-color: #ad0a21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ad0a21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(173, 10, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 10, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ad0a21; background: linear-gradient(135deg, #ad0a21, #AD600A);