#b73d21
a dark, vivid red · warm · closest name: firebrick
RGB
183, 61, 33
HSL
11°, 69%, 42%
CMYK
0, 67, 82, 28
Luminance
0.1351
Every format
| HEX | #b73d21 |
| RGB | rgb(183, 61, 33) |
| HSL | hsl(11, 69%, 42%) |
| CMYK | cmyk(0%, 67%, 82%, 28%) |
| LAB | lab(43.5 47.9 42.8) |
| LCH | lch(43.5 64.3 41.8) |
| OKLCH | oklch(0.531 0.163 34.2) |
Copy-ready code
/* CSS */
color: #b73d21;
background-color: #b73d21;
/* Tailwind (arbitrary) */
class="text-[#b73d21] bg-[#b73d21]"
/* SCSS */
$brand: #b73d21;
/* SwiftUI */
Color(red: 0.718, green: 0.239, blue: 0.129)
/* Android */
Color.parseColor("#b73d21")Accessibility — WCAG contrast
Aa
#b73d21 on white: 5.67:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b73d21 on black: 3.70:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red71.8%
Green23.9%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta66.7%
Yellow82.0%
Key (black)28.2%
Color previews
#b73d21 text on a black background
contrast 3.70:1
Card sample
#b73d21 text on a white background
contrast 5.67:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b73d21;
Background color
Panel with #b73d21 background
background-color: #b73d21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b73d21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(183, 61, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(183, 61, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b73d21; background: linear-gradient(135deg, #b73d21, #B7A121);