#ff1f3f
a balanced, electric red · warm · closest name: crimson
RGB
255, 31, 63
HSL
351°, 100%, 56%
CMYK
0, 88, 75, 0
Luminance
0.2260
Every format
| HEX | #ff1f3f |
| RGB | rgb(255, 31, 63) |
| HSL | hsl(351, 100%, 56%) |
| CMYK | cmyk(0%, 88%, 75%, 0%) |
| LAB | lab(54.7 78.2 42.4) |
| LCH | lch(54.7 88.9 28.5) |
| OKLCH | oklch(0.640 0.246 22.4) |
Copy-ready code
/* CSS */
color: #ff1f3f;
background-color: #ff1f3f;
/* Tailwind (arbitrary) */
class="text-[#ff1f3f] bg-[#ff1f3f]"
/* SCSS */
$brand: #ff1f3f;
/* SwiftUI */
Color(red: 1.000, green: 0.122, blue: 0.247)
/* Android */
Color.parseColor("#ff1f3f")Accessibility — WCAG contrast
Aa
#ff1f3f on white: 3.80:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff1f3f on black: 5.52:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green12.2%
Blue24.7%
CMYK percentages
Cyan0.0%
Magenta87.8%
Yellow75.3%
Key (black)0.0%
Color previews
#ff1f3f text on a black background
contrast 5.52:1
Card sample
#ff1f3f text on a white background
contrast 3.80:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff1f3f;
Background color
Panel with #ff1f3f background
background-color: #ff1f3f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff1f3f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 31, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 31, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff1f3f; background: linear-gradient(135deg, #ff1f3f, #FF941F);