#ff0a39
a balanced, electric red · warm · closest name: crimson
RGB
255, 10, 57
HSL
349°, 100%, 52%
CMYK
0, 96, 78, 0
Luminance
0.2177
Every format
| HEX | #ff0a39 |
| RGB | rgb(255, 10, 57) |
| HSL | hsl(349, 100%, 52%) |
| CMYK | cmyk(0%, 96%, 78%, 0%) |
| LAB | lab(53.8 80.3 44.8) |
| LCH | lch(53.8 92.0 29.2) |
| OKLCH | oklch(0.633 0.253 22.7) |
Copy-ready code
/* CSS */
color: #ff0a39;
background-color: #ff0a39;
/* Tailwind (arbitrary) */
class="text-[#ff0a39] bg-[#ff0a39]"
/* SCSS */
$brand: #ff0a39;
/* SwiftUI */
Color(red: 1.000, green: 0.039, blue: 0.224)
/* Android */
Color.parseColor("#ff0a39")Accessibility — WCAG contrast
Aa
#ff0a39 on white: 3.92:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff0a39 on black: 5.35:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green3.9%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta96.1%
Yellow77.6%
Key (black)0.0%
Color previews
#ff0a39 text on a black background
contrast 5.35:1
Card sample
#ff0a39 text on a white background
contrast 3.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff0a39;
Background color
Panel with #ff0a39 background
background-color: #ff0a39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff0a39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 10, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 10, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff0a39; background: linear-gradient(135deg, #ff0a39, #FF7E0A);