#b72821
a dark, vivid red · warm · closest name: firebrick
RGB
183, 40, 33
HSL
3°, 69%, 42%
CMYK
0, 78, 82, 28
Luminance
0.1169
Every format
| HEX | #b72821 |
| RGB | rgb(183, 40, 33) |
| HSL | hsl(3, 69%, 42%) |
| CMYK | cmyk(0%, 78%, 82%, 28%) |
| LAB | lab(40.7 55.6 40.1) |
| LCH | lch(40.7 68.6 35.8) |
| OKLCH | oklch(0.510 0.180 28.4) |
Copy-ready code
/* CSS */
color: #b72821;
background-color: #b72821;
/* Tailwind (arbitrary) */
class="text-[#b72821] bg-[#b72821]"
/* SCSS */
$brand: #b72821;
/* SwiftUI */
Color(red: 0.718, green: 0.157, blue: 0.129)
/* Android */
Color.parseColor("#b72821")Accessibility — WCAG contrast
Aa
#b72821 on white: 6.29:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b72821 on black: 3.34:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red71.8%
Green15.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta78.1%
Yellow82.0%
Key (black)28.2%
Color previews
#b72821 text on a black background
contrast 3.34:1
Card sample
#b72821 text on a white background
contrast 6.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b72821;
Background color
Panel with #b72821 background
background-color: #b72821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b72821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(183, 40, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(183, 40, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b72821; background: linear-gradient(135deg, #b72821, #B78C21);