#f31339
a balanced, electric red · warm · closest name: crimson
RGB
243, 19, 57
HSL
350°, 90%, 51%
CMYK
0, 92, 77, 5
Luminance
0.1982
Every format
| HEX | #f31339 |
| RGB | rgb(243, 19, 57) |
| HSL | hsl(350, 90%, 51%) |
| CMYK | cmyk(0%, 92%, 77%, 5%) |
| LAB | lab(51.6 76.6 41.8) |
| LCH | lch(51.6 87.3 28.6) |
| OKLCH | oklch(0.613 0.241 22.4) |
Copy-ready code
/* CSS */
color: #f31339;
background-color: #f31339;
/* Tailwind (arbitrary) */
class="text-[#f31339] bg-[#f31339]"
/* SCSS */
$brand: #f31339;
/* SwiftUI */
Color(red: 0.953, green: 0.075, blue: 0.224)
/* Android */
Color.parseColor("#f31339")Accessibility — WCAG contrast
Aa
#f31339 on white: 4.23:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#f31339 on black: 4.96:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red95.3%
Green7.5%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta92.2%
Yellow76.5%
Key (black)4.7%
Color previews
#f31339 text on a black background
contrast 4.96:1
Card sample
#f31339 text on a white background
contrast 4.23:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f31339;
Background color
Panel with #f31339 background
background-color: #f31339;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f31339;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(243, 19, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 19, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f31339; background: linear-gradient(135deg, #f31339, #F38213);