#a40821
a dark, electric red · warm · closest name: firebrick
RGB
164, 8, 33
HSL
350°, 91%, 34%
CMYK
0, 95, 80, 36
Luminance
0.0818
Every format
| HEX | #a40821 |
| RGB | rgb(164, 8, 33) |
| HSL | hsl(350, 91%, 34%) |
| CMYK | cmyk(0%, 95%, 80%, 36%) |
| LAB | lab(34.4 57.1 32.4) |
| LCH | lch(34.4 65.7 29.6) |
| OKLCH | oklch(0.456 0.180 23.0) |
Copy-ready code
/* CSS */
color: #a40821;
background-color: #a40821;
/* Tailwind (arbitrary) */
class="text-[#a40821] bg-[#a40821]"
/* SCSS */
$brand: #a40821;
/* SwiftUI */
Color(red: 0.643, green: 0.031, blue: 0.129)
/* Android */
Color.parseColor("#a40821")Accessibility — WCAG contrast
Aa
#a40821 on white: 7.97:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a40821 on black: 2.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green3.1%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta95.1%
Yellow79.9%
Key (black)35.7%
Color previews
#a40821 text on a black background
contrast 2.64:1
Card sample
#a40821 text on a white background
contrast 7.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a40821;
Background color
Panel with #a40821 background
background-color: #a40821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a40821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 8, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 8, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a40821; background: linear-gradient(135deg, #a40821, #A45708);