#b53921
a dark, vivid red · warm · closest name: firebrick
RGB
181, 57, 33
HSL
10°, 69%, 42%
CMYK
0, 69, 82, 29
Luminance
0.1286
Every format
| HEX | #b53921 |
| RGB | rgb(181, 57, 33) |
| HSL | hsl(10, 69%, 42%) |
| CMYK | cmyk(0%, 69%, 82%, 29%) |
| LAB | lab(42.6 48.9 41.7) |
| LCH | lch(42.6 64.3 40.5) |
| OKLCH | oklch(0.523 0.164 33.0) |
Copy-ready code
/* CSS */
color: #b53921;
background-color: #b53921;
/* Tailwind (arbitrary) */
class="text-[#b53921] bg-[#b53921]"
/* SCSS */
$brand: #b53921;
/* SwiftUI */
Color(red: 0.710, green: 0.224, blue: 0.129)
/* Android */
Color.parseColor("#b53921")Accessibility — WCAG contrast
Aa
#b53921 on white: 5.88:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b53921 on black: 3.57:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red71.0%
Green22.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta68.5%
Yellow81.8%
Key (black)29.0%
Color previews
#b53921 text on a black background
contrast 3.57:1
Card sample
#b53921 text on a white background
contrast 5.88:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b53921;
Background color
Panel with #b53921 background
background-color: #b53921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b53921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(181, 57, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(181, 57, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b53921; background: linear-gradient(135deg, #b53921, #B59C21);