#b53421
a dark, vivid red · warm · closest name: firebrick
RGB
181, 52, 33
HSL
8°, 69%, 42%
CMYK
0, 71, 82, 29
Luminance
0.1239
Every format
| HEX | #b53421 |
| RGB | rgb(181, 52, 33) |
| HSL | hsl(8, 69%, 42%) |
| CMYK | cmyk(0%, 71%, 82%, 29%) |
| LAB | lab(41.8 50.9 41.0) |
| LCH | lch(41.8 65.4 38.9) |
| OKLCH | oklch(0.518 0.169 31.4) |
Copy-ready code
/* CSS */
color: #b53421;
background-color: #b53421;
/* Tailwind (arbitrary) */
class="text-[#b53421] bg-[#b53421]"
/* SCSS */
$brand: #b53421;
/* SwiftUI */
Color(red: 0.710, green: 0.204, blue: 0.129)
/* Android */
Color.parseColor("#b53421")Accessibility — WCAG contrast
Aa
#b53421 on white: 6.04:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b53421 on black: 3.48:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red71.0%
Green20.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta71.3%
Yellow81.8%
Key (black)29.0%
Color previews
#b53421 text on a black background
contrast 3.48:1
Card sample
#b53421 text on a white background
contrast 6.04:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b53421;
Background color
Panel with #b53421 background
background-color: #b53421;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b53421;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(181, 52, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(181, 52, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b53421; background: linear-gradient(135deg, #b53421, #B59721);