#cb0421
a dark, electric red · warm · closest name: crimson
RGB
203, 4, 33
HSL
351°, 96%, 41%
CMYK
0, 98, 84, 20
Luminance
0.1289
Every format
| HEX | #cb0421 |
| RGB | rgb(203, 4, 33) |
| HSL | hsl(351, 96%, 41%) |
| CMYK | cmyk(0%, 98%, 84%, 20%) |
| LAB | lab(42.6 67.5 43.4) |
| LCH | lch(42.6 80.2 32.7) |
| OKLCH | oklch(0.531 0.214 25.0) |
Copy-ready code
/* CSS */
color: #cb0421;
background-color: #cb0421;
/* Tailwind (arbitrary) */
class="text-[#cb0421] bg-[#cb0421]"
/* SCSS */
$brand: #cb0421;
/* SwiftUI */
Color(red: 0.796, green: 0.016, blue: 0.129)
/* Android */
Color.parseColor("#cb0421")Accessibility — WCAG contrast
Aa
#cb0421 on white: 5.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#cb0421 on black: 3.58:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red79.6%
Green1.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta98.0%
Yellow83.7%
Key (black)20.4%
Color previews
#cb0421 text on a black background
contrast 3.58:1
Card sample
#cb0421 text on a white background
contrast 5.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #cb0421;
Background color
Panel with #cb0421 background
background-color: #cb0421;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #cb0421;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(203, 4, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(203, 4, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cb0421; background: linear-gradient(135deg, #cb0421, #CB6C04);