#ff1f21
a balanced, electric red · warm · closest name: red
RGB
255, 31, 33
HSL
360°, 100%, 56%
CMYK
0, 88, 87, 0
Luminance
0.2235
Every format
| HEX | #ff1f21 |
| RGB | rgb(255, 31, 33) |
| HSL | hsl(360, 100%, 56%) |
| CMYK | cmyk(0%, 88%, 87%, 0%) |
| LAB | lab(54.4 77.4 57.5) |
| LCH | lch(54.4 96.4 36.6) |
| OKLCH | oklch(0.637 0.249 27.9) |
Copy-ready code
/* CSS */
color: #ff1f21;
background-color: #ff1f21;
/* Tailwind (arbitrary) */
class="text-[#ff1f21] bg-[#ff1f21]"
/* SCSS */
$brand: #ff1f21;
/* SwiftUI */
Color(red: 1.000, green: 0.122, blue: 0.129)
/* Android */
Color.parseColor("#ff1f21")Accessibility — WCAG contrast
Aa
#ff1f21 on white: 3.84:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff1f21 on black: 5.47:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green12.2%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta87.8%
Yellow87.1%
Key (black)0.0%
Color previews
#ff1f21 text on a black background
contrast 5.47:1
Card sample
#ff1f21 text on a white background
contrast 3.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff1f21;
Background color
Panel with #ff1f21 background
background-color: #ff1f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff1f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 31, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 31, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff1f21; background: linear-gradient(135deg, #ff1f21, #FFB31F);