#d81721
a balanced, electric red · warm · closest name: crimson
RGB
216, 23, 33
HSL
357°, 81%, 47%
CMYK
0, 89, 85, 15
Luminance
0.1532
Every format
| HEX | #d81721 |
| RGB | rgb(216, 23, 33) |
| HSL | hsl(357, 81%, 47%) |
| CMYK | cmyk(0%, 89%, 85%, 15%) |
| LAB | lab(46.1 68.7 47.5) |
| LCH | lch(46.1 83.5 34.7) |
| OKLCH | oklch(0.562 0.219 26.6) |
Copy-ready code
/* CSS */
color: #d81721;
background-color: #d81721;
/* Tailwind (arbitrary) */
class="text-[#d81721] bg-[#d81721]"
/* SCSS */
$brand: #d81721;
/* SwiftUI */
Color(red: 0.847, green: 0.090, blue: 0.129)
/* Android */
Color.parseColor("#d81721")Accessibility — WCAG contrast
Aa
#d81721 on white: 5.17:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#d81721 on black: 4.06:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red84.7%
Green9.0%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta89.4%
Yellow84.7%
Key (black)15.3%
Color previews
#d81721 text on a black background
contrast 4.06:1
Card sample
#d81721 text on a white background
contrast 5.17:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #d81721;
Background color
Panel with #d81721 background
background-color: #d81721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #d81721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(216, 23, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(216, 23, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #d81721; background: linear-gradient(135deg, #d81721, #D88E17);