#f31421
a balanced, electric red · warm · closest name: red
RGB
243, 20, 33
HSL
357°, 90%, 52%
CMYK
0, 92, 86, 5
Luminance
0.1966
Every format
| HEX | #f31421 |
| RGB | rgb(243, 20, 33) |
| HSL | hsl(357, 90%, 52%) |
| CMYK | cmyk(0%, 92%, 86%, 5%) |
| LAB | lab(51.5 75.9 54.2) |
| LCH | lch(51.5 93.3 35.5) |
| OKLCH | oklch(0.611 0.243 27.0) |
Copy-ready code
/* CSS */
color: #f31421;
background-color: #f31421;
/* Tailwind (arbitrary) */
class="text-[#f31421] bg-[#f31421]"
/* SCSS */
$brand: #f31421;
/* SwiftUI */
Color(red: 0.953, green: 0.078, blue: 0.129)
/* Android */
Color.parseColor("#f31421")Accessibility — WCAG contrast
Aa
#f31421 on white: 4.26:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#f31421 on black: 4.93:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red95.3%
Green7.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta91.8%
Yellow86.4%
Key (black)4.7%
Color previews
#f31421 text on a black background
contrast 4.93:1
Card sample
#f31421 text on a white background
contrast 4.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f31421;
Background color
Panel with #f31421 background
background-color: #f31421;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f31421;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(243, 20, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 20, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f31421; background: linear-gradient(135deg, #f31421, #F39C14);