#bb3721
a dark, vivid red · warm · closest name: firebrick
RGB
187, 55, 33
HSL
9°, 70%, 43%
CMYK
0, 71, 82, 27
Luminance
0.1341
Every format
| HEX | #bb3721 |
| RGB | rgb(187, 55, 33) |
| HSL | hsl(9, 70%, 43%) |
| CMYK | cmyk(0%, 71%, 82%, 27%) |
| LAB | lab(43.4 51.7 42.9) |
| LCH | lch(43.4 67.2 39.7) |
| OKLCH | oklch(0.532 0.172 32.1) |
Copy-ready code
/* CSS */
color: #bb3721;
background-color: #bb3721;
/* Tailwind (arbitrary) */
class="text-[#bb3721] bg-[#bb3721]"
/* SCSS */
$brand: #bb3721;
/* SwiftUI */
Color(red: 0.733, green: 0.216, blue: 0.129)
/* Android */
Color.parseColor("#bb3721")Accessibility — WCAG contrast
Aa
#bb3721 on white: 5.70:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#bb3721 on black: 3.68:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red73.3%
Green21.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta70.6%
Yellow82.4%
Key (black)26.7%
Color previews
#bb3721 text on a black background
contrast 3.68:1
Card sample
#bb3721 text on a white background
contrast 5.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #bb3721;
Background color
Panel with #bb3721 background
background-color: #bb3721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #bb3721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(187, 55, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(187, 55, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #bb3721; background: linear-gradient(135deg, #bb3721, #BB9E21);