#a71521
a dark, electric red · warm · closest name: firebrick
RGB
167, 21, 33
HSL
355°, 78%, 37%
CMYK
0, 87, 80, 35
Luminance
0.0886
Every format
| HEX | #a71521 |
| RGB | rgb(167, 21, 33) |
| HSL | hsl(355, 78%, 37%) |
| CMYK | cmyk(0%, 87%, 80%, 35%) |
| LAB | lab(35.7 55.9 34.0) |
| LCH | lch(35.7 65.4 31.3) |
| OKLCH | oklch(0.468 0.177 24.6) |
Copy-ready code
/* CSS */
color: #a71521;
background-color: #a71521;
/* Tailwind (arbitrary) */
class="text-[#a71521] bg-[#a71521]"
/* SCSS */
$brand: #a71521;
/* SwiftUI */
Color(red: 0.655, green: 0.082, blue: 0.129)
/* Android */
Color.parseColor("#a71521")Accessibility — WCAG contrast
Aa
#a71521 on white: 7.57:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a71521 on black: 2.77:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red65.5%
Green8.2%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta87.4%
Yellow80.2%
Key (black)34.5%
Color previews
#a71521 text on a black background
contrast 2.77:1
Card sample
#a71521 text on a white background
contrast 7.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a71521;
Background color
Panel with #a71521 background
background-color: #a71521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a71521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(167, 21, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(167, 21, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a71521; background: linear-gradient(135deg, #a71521, #A76B15);