#ff243f
a balanced, electric red · warm · closest name: crimson
RGB
255, 36, 63
HSL
353°, 100%, 57%
CMYK
0, 86, 75, 0
Luminance
0.2288
Every format
| HEX | #ff243f |
| RGB | rgb(255, 36, 63) |
| HSL | hsl(353, 100%, 57%) |
| CMYK | cmyk(0%, 86%, 75%, 0%) |
| LAB | lab(55.0 77.3 42.7) |
| LCH | lch(55.0 88.3 28.9) |
| OKLCH | oklch(0.642 0.244 22.8) |
Copy-ready code
/* CSS */
color: #ff243f;
background-color: #ff243f;
/* Tailwind (arbitrary) */
class="text-[#ff243f] bg-[#ff243f]"
/* SCSS */
$brand: #ff243f;
/* SwiftUI */
Color(red: 1.000, green: 0.141, blue: 0.247)
/* Android */
Color.parseColor("#ff243f")Accessibility — WCAG contrast
Aa
#ff243f on white: 3.77:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff243f on black: 5.58:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green14.1%
Blue24.7%
CMYK percentages
Cyan0.0%
Magenta85.9%
Yellow75.3%
Key (black)0.0%
Color previews
#ff243f text on a black background
contrast 5.58:1
Card sample
#ff243f text on a white background
contrast 3.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff243f;
Background color
Panel with #ff243f background
background-color: #ff243f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff243f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 36, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 36, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff243f; background: linear-gradient(135deg, #ff243f, #FF9B24);