#ff0011
a balanced, electric red · warm · closest name: red
RGB
255, 0, 17
HSL
356°, 100%, 50%
CMYK
0, 100, 93, 0
Luminance
0.2130
Every format
| HEX | #ff0011 |
| RGB | rgb(255, 0, 17) |
| HSL | hsl(356, 100%, 50%) |
| CMYK | cmyk(0%, 100%, 93%, 0%) |
| LAB | lab(53.3 80.2 62.9) |
| LCH | lch(53.3 101.9 38.1) |
| OKLCH | oklch(0.628 0.257 28.2) |
Copy-ready code
/* CSS */
color: #ff0011;
background-color: #ff0011;
/* Tailwind (arbitrary) */
class="text-[#ff0011] bg-[#ff0011]"
/* SCSS */
$brand: #ff0011;
/* SwiftUI */
Color(red: 1.000, green: 0.000, blue: 0.067)
/* Android */
Color.parseColor("#ff0011")Accessibility — WCAG contrast
Aa
#ff0011 on white: 3.99:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff0011 on black: 5.26:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green0.0%
Blue6.7%
CMYK percentages
Cyan0.0%
Magenta100.0%
Yellow93.3%
Key (black)0.0%
Color previews
#ff0011 text on a black background
contrast 5.26:1
Card sample
#ff0011 text on a white background
contrast 3.99:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff0011;
Background color
Panel with #ff0011 background
background-color: #ff0011;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff0011;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 0, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 0, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff0011; background: linear-gradient(135deg, #ff0011, #FF9900);