#a43521
a dark, vivid red · warm · closest name: firebrick
RGB
164, 53, 33
HSL
9°, 67%, 39%
CMYK
0, 68, 80, 36
Luminance
0.1055
Every format
| HEX | #a43521 |
| RGB | rgb(164, 53, 33) |
| HSL | hsl(9, 67%, 39%) |
| CMYK | cmyk(0%, 68%, 80%, 36%) |
| LAB | lab(38.8 44.7 37.0) |
| LCH | lch(38.8 58.0 39.6) |
| OKLCH | oklch(0.490 0.150 32.5) |
Copy-ready code
/* CSS */
color: #a43521;
background-color: #a43521;
/* Tailwind (arbitrary) */
class="text-[#a43521] bg-[#a43521]"
/* SCSS */
$brand: #a43521;
/* SwiftUI */
Color(red: 0.643, green: 0.208, blue: 0.129)
/* Android */
Color.parseColor("#a43521")Accessibility — WCAG contrast
Aa
#a43521 on white: 6.75:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#a43521 on black: 3.11:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green20.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta67.7%
Yellow79.9%
Key (black)35.7%
Color previews
#a43521 text on a black background
contrast 3.11:1
Card sample
#a43521 text on a white background
contrast 6.75:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a43521;
Background color
Panel with #a43521 background
background-color: #a43521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a43521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 53, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 53, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a43521; background: linear-gradient(135deg, #a43521, #A48C21);