#a91237
a dark, electric red · warm · closest name: firebrick
RGB
169, 18, 55
HSL
345°, 81%, 37%
CMYK
0, 89, 68, 34
Luminance
0.0914
Every format
| HEX | #a91237 |
| RGB | rgb(169, 18, 55) |
| HSL | hsl(345, 81%, 37%) |
| CMYK | cmyk(0%, 89%, 68%, 34%) |
| LAB | lab(36.3 57.9 21.1) |
| LCH | lch(36.3 61.6 20.0) |
| OKLCH | oklch(0.473 0.180 16.2) |
Copy-ready code
/* CSS */
color: #a91237;
background-color: #a91237;
/* Tailwind (arbitrary) */
class="text-[#a91237] bg-[#a91237]"
/* SCSS */
$brand: #a91237;
/* SwiftUI */
Color(red: 0.663, green: 0.071, blue: 0.216)
/* Android */
Color.parseColor("#a91237")Accessibility — WCAG contrast
Aa
#a91237 on white: 7.42:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#a91237 on black: 2.83:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red66.3%
Green7.1%
Blue21.6%
CMYK percentages
Cyan0.0%
Magenta89.3%
Yellow67.5%
Key (black)33.7%
Color previews
#a91237 text on a black background
contrast 2.83:1
Card sample
#a91237 text on a white background
contrast 7.42:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a91237;
Background color
Panel with #a91237 background
background-color: #a91237;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a91237;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(169, 18, 55, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(169, 18, 55, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a91237; background: linear-gradient(135deg, #a91237, #A95212);