#b83b21
a dark, vivid red · warm · closest name: firebrick
RGB
184, 59, 33
HSL
10°, 70%, 43%
CMYK
0, 68, 82, 28
Luminance
0.1343
Every format
| HEX | #b83b21 |
| RGB | rgb(184, 59, 33) |
| HSL | hsl(10, 70%, 43%) |
| CMYK | cmyk(0%, 68%, 82%, 28%) |
| LAB | lab(43.4 49.1 42.7) |
| LCH | lch(43.4 65.1 41.0) |
| OKLCH | oklch(0.531 0.166 33.5) |
Copy-ready code
/* CSS */
color: #b83b21;
background-color: #b83b21;
/* Tailwind (arbitrary) */
class="text-[#b83b21] bg-[#b83b21]"
/* SCSS */
$brand: #b83b21;
/* SwiftUI */
Color(red: 0.722, green: 0.231, blue: 0.129)
/* Android */
Color.parseColor("#b83b21")Accessibility — WCAG contrast
Aa
#b83b21 on white: 5.70:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b83b21 on black: 3.69:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red72.2%
Green23.1%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta67.9%
Yellow82.1%
Key (black)27.8%
Color previews
#b83b21 text on a black background
contrast 3.69:1
Card sample
#b83b21 text on a white background
contrast 5.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b83b21;
Background color
Panel with #b83b21 background
background-color: #b83b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b83b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(184, 59, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(184, 59, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b83b21; background: linear-gradient(135deg, #b83b21, #B89F21);