#b81237
a dark, electric red · warm · closest name: firebrick
RGB
184, 18, 55
HSL
347°, 82%, 40%
CMYK
0, 90, 70, 28
Luminance
0.1090
Every format
| HEX | #b81237 |
| RGB | rgb(184, 18, 55) |
| HSL | hsl(347, 82%, 40%) |
| CMYK | cmyk(0%, 90%, 70%, 28%) |
| LAB | lab(39.4 61.9 25.7) |
| LCH | lch(39.4 67.0 22.6) |
| OKLCH | oklch(0.502 0.193 18.1) |
Copy-ready code
/* CSS */
color: #b81237;
background-color: #b81237;
/* Tailwind (arbitrary) */
class="text-[#b81237] bg-[#b81237]"
/* SCSS */
$brand: #b81237;
/* SwiftUI */
Color(red: 0.722, green: 0.071, blue: 0.216)
/* Android */
Color.parseColor("#b81237")Accessibility — WCAG contrast
Aa
#b81237 on white: 6.60:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b81237 on black: 3.18:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red72.2%
Green7.1%
Blue21.6%
CMYK percentages
Cyan0.0%
Magenta90.2%
Yellow70.1%
Key (black)27.8%
Color previews
#b81237 text on a black background
contrast 3.18:1
Card sample
#b81237 text on a white background
contrast 6.60:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b81237;
Background color
Panel with #b81237 background
background-color: #b81237;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b81237;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(184, 18, 55, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(184, 18, 55, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b81237; background: linear-gradient(135deg, #b81237, #B85C12);