#d31b21
a balanced, electric red · warm · closest name: crimson
RGB
211, 27, 33
HSL
358°, 77%, 47%
CMYK
0, 87, 84, 17
Luminance
0.1474
Every format
| HEX | #d31b21 |
| RGB | rgb(211, 27, 33) |
| HSL | hsl(358, 77%, 47%) |
| CMYK | cmyk(0%, 87%, 84%, 17%) |
| LAB | lab(45.3 66.7 46.4) |
| LCH | lch(45.3 81.2 34.8) |
| OKLCH | oklch(0.554 0.213 26.9) |
Copy-ready code
/* CSS */
color: #d31b21;
background-color: #d31b21;
/* Tailwind (arbitrary) */
class="text-[#d31b21] bg-[#d31b21]"
/* SCSS */
$brand: #d31b21;
/* SwiftUI */
Color(red: 0.827, green: 0.106, blue: 0.129)
/* Android */
Color.parseColor("#d31b21")Accessibility — WCAG contrast
Aa
#d31b21 on white: 5.32:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#d31b21 on black: 3.95:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red82.7%
Green10.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta87.2%
Yellow84.4%
Key (black)17.3%
Color previews
#d31b21 text on a black background
contrast 3.95:1
Card sample
#d31b21 text on a white background
contrast 5.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #d31b21;
Background color
Panel with #d31b21 background
background-color: #d31b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #d31b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(211, 27, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(211, 27, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #d31b21; background: linear-gradient(135deg, #d31b21, #D3901B);