#ff040f
a balanced, electric red · warm · closest name: red
RGB
255, 4, 15
HSL
357°, 100%, 51%
CMYK
0, 98, 94, 0
Luminance
0.2138
Every format
| HEX | #ff040f |
| RGB | rgb(255, 4, 15) |
| HSL | hsl(357, 100%, 51%) |
| CMYK | cmyk(0%, 98%, 94%, 0%) |
| LAB | lab(53.4 79.9 63.5) |
| LCH | lch(53.4 102.1 38.5) |
| OKLCH | oklch(0.629 0.257 28.5) |
Copy-ready code
/* CSS */
color: #ff040f;
background-color: #ff040f;
/* Tailwind (arbitrary) */
class="text-[#ff040f] bg-[#ff040f]"
/* SCSS */
$brand: #ff040f;
/* SwiftUI */
Color(red: 1.000, green: 0.016, blue: 0.059)
/* Android */
Color.parseColor("#ff040f")Accessibility — WCAG contrast
Aa
#ff040f on white: 3.98:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff040f on black: 5.28:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green1.6%
Blue5.9%
CMYK percentages
Cyan0.0%
Magenta98.4%
Yellow94.1%
Key (black)0.0%
Color previews
#ff040f text on a black background
contrast 5.28:1
Card sample
#ff040f text on a white background
contrast 3.98:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff040f;
Background color
Panel with #ff040f background
background-color: #ff040f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff040f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 4, 15, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 4, 15, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff040f; background: linear-gradient(135deg, #ff040f, #FFA004);