#b31f39
a dark, vivid red · warm · closest name: firebrick
RGB
179, 31, 57
HSL
350°, 71%, 41%
CMYK
0, 83, 68, 30
Luminance
0.1086
Every format
| HEX | #b31f39 |
| RGB | rgb(179, 31, 57) |
| HSL | hsl(350, 71%, 41%) |
| CMYK | cmyk(0%, 83%, 68%, 30%) |
| LAB | lab(39.4 57.9 24.2) |
| LCH | lch(39.4 62.8 22.7) |
| OKLCH | oklch(0.500 0.181 18.3) |
Copy-ready code
/* CSS */
color: #b31f39;
background-color: #b31f39;
/* Tailwind (arbitrary) */
class="text-[#b31f39] bg-[#b31f39]"
/* SCSS */
$brand: #b31f39;
/* SwiftUI */
Color(red: 0.702, green: 0.122, blue: 0.224)
/* Android */
Color.parseColor("#b31f39")Accessibility — WCAG contrast
Aa
#b31f39 on white: 6.62:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b31f39 on black: 3.17:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red70.2%
Green12.2%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta82.7%
Yellow68.2%
Key (black)29.8%
Color previews
#b31f39 text on a black background
contrast 3.17:1
Card sample
#b31f39 text on a white background
contrast 6.62:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b31f39;
Background color
Panel with #b31f39 background
background-color: #b31f39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b31f39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(179, 31, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(179, 31, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b31f39; background: linear-gradient(135deg, #b31f39, #B3681F);