#a42b21
a dark, vivid red · warm · closest name: firebrick
RGB
164, 43, 33
HSL
5°, 67%, 39%
CMYK
0, 74, 80, 36
Luminance
0.0973
Every format
| HEX | #a42b21 |
| RGB | rgb(164, 43, 33) |
| HSL | hsl(5, 67%, 39%) |
| CMYK | cmyk(0%, 74%, 80%, 36%) |
| LAB | lab(37.4 48.6 35.5) |
| LCH | lch(37.4 60.2 36.1) |
| OKLCH | oklch(0.479 0.159 29.1) |
Copy-ready code
/* CSS */
color: #a42b21;
background-color: #a42b21;
/* Tailwind (arbitrary) */
class="text-[#a42b21] bg-[#a42b21]"
/* SCSS */
$brand: #a42b21;
/* SwiftUI */
Color(red: 0.643, green: 0.169, blue: 0.129)
/* Android */
Color.parseColor("#a42b21")Accessibility — WCAG contrast
Aa
#a42b21 on white: 7.13:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a42b21 on black: 2.95:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green16.9%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta73.8%
Yellow79.9%
Key (black)35.7%
Color previews
#a42b21 text on a black background
contrast 2.95:1
Card sample
#a42b21 text on a white background
contrast 7.13:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a42b21;
Background color
Panel with #a42b21 background
background-color: #a42b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a42b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 43, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 43, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a42b21; background: linear-gradient(135deg, #a42b21, #A48221);