#b31933
a dark, electric red · warm · closest name: firebrick
RGB
179, 25, 51
HSL
350°, 76%, 40%
CMYK
0, 86, 72, 30
Luminance
0.1052
Every format
| HEX | #b31933 |
| RGB | rgb(179, 25, 51) |
| HSL | hsl(350, 76%, 40%) |
| CMYK | cmyk(0%, 86%, 72%, 30%) |
| LAB | lab(38.8 59.0 27.2) |
| LCH | lch(38.8 65.0 24.7) |
| OKLCH | oklch(0.495 0.185 19.8) |
Copy-ready code
/* CSS */
color: #b31933;
background-color: #b31933;
/* Tailwind (arbitrary) */
class="text-[#b31933] bg-[#b31933]"
/* SCSS */
$brand: #b31933;
/* SwiftUI */
Color(red: 0.702, green: 0.098, blue: 0.200)
/* Android */
Color.parseColor("#b31933")Accessibility — WCAG contrast
Aa
#b31933 on white: 6.77:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#b31933 on black: 3.10:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red70.2%
Green9.8%
Blue20.0%
CMYK percentages
Cyan0.0%
Magenta86.0%
Yellow71.5%
Key (black)29.8%
Color previews
#b31933 text on a black background
contrast 3.10:1
Card sample
#b31933 text on a white background
contrast 6.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b31933;
Background color
Panel with #b31933 background
background-color: #b31933;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b31933;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(179, 25, 51, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(179, 25, 51, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b31933; background: linear-gradient(135deg, #b31933, #B36619);