#bb3521
a dark, vivid red · warm · closest name: firebrick
RGB
187, 53, 33
HSL
8°, 70%, 43%
CMYK
0, 72, 82, 27
Luminance
0.1322
Every format
| HEX | #bb3521 |
| RGB | rgb(187, 53, 33) |
| HSL | hsl(8, 70%, 43%) |
| CMYK | cmyk(0%, 72%, 82%, 27%) |
| LAB | lab(43.1 52.5 42.6) |
| LCH | lch(43.1 67.6 39.1) |
| OKLCH | oklch(0.530 0.174 31.5) |
Copy-ready code
/* CSS */
color: #bb3521;
background-color: #bb3521;
/* Tailwind (arbitrary) */
class="text-[#bb3521] bg-[#bb3521]"
/* SCSS */
$brand: #bb3521;
/* SwiftUI */
Color(red: 0.733, green: 0.208, blue: 0.129)
/* Android */
Color.parseColor("#bb3521")Accessibility — WCAG contrast
Aa
#bb3521 on white: 5.76:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#bb3521 on black: 3.64:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red73.3%
Green20.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta71.7%
Yellow82.4%
Key (black)26.7%
Color previews
#bb3521 text on a black background
contrast 3.64:1
Card sample
#bb3521 text on a white background
contrast 5.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #bb3521;
Background color
Panel with #bb3521 background
background-color: #bb3521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #bb3521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(187, 53, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(187, 53, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #bb3521; background: linear-gradient(135deg, #bb3521, #BB9C21);