#f00021
a balanced, electric red · warm · closest name: red
RGB
240, 0, 33
HSL
352°, 100%, 47%
CMYK
0, 100, 86, 6
Luminance
0.1864
Every format
| HEX | #f00021 |
| RGB | rgb(240, 0, 33) |
| HSL | hsl(352, 100%, 47%) |
| CMYK | cmyk(0%, 100%, 86%, 6%) |
| LAB | lab(50.3 76.9 53.0) |
| LCH | lch(50.3 93.3 34.6) |
| OKLCH | oklch(0.601 0.244 26.2) |
Copy-ready code
/* CSS */
color: #f00021;
background-color: #f00021;
/* Tailwind (arbitrary) */
class="text-[#f00021] bg-[#f00021]"
/* SCSS */
$brand: #f00021;
/* SwiftUI */
Color(red: 0.941, green: 0.000, blue: 0.129)
/* Android */
Color.parseColor("#f00021")Accessibility — WCAG contrast
Aa
#f00021 on white: 4.44:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#f00021 on black: 4.73:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red94.1%
Green0.0%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow86.3%
Key (black)5.9%
Color previews
#f00021 text on a black background
contrast 4.73:1
Card sample
#f00021 text on a white background
contrast 4.44:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f00021;
Background color
Panel with #f00021 background
background-color: #f00021;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f00021;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(240, 0, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(240, 0, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f00021; background: linear-gradient(135deg, #f00021, #F07F00);