#ff1100
a balanced, electric red · warm · “red”
RGB
255, 17, 0
HSL
4°, 100%, 50%
CMYK
0, 93, 100, 0
Luminance
0.2166
Every format
| HEX | #ff1100 |
| RGB | rgb(255, 17, 0) |
| HSL | hsl(4, 100%, 50%) |
| CMYK | cmyk(0%, 93%, 100%, 0%) |
| LAB | lab(53.7 78.8 67.3) |
| LCH | lch(53.7 103.7 40.5) |
| OKLCH | oklch(0.631 0.255 29.8) |
Copy-ready code
/* CSS */
color: #ff1100;
background-color: #ff1100;
/* Tailwind (arbitrary) */
class="text-[#ff1100] bg-[#ff1100]"
/* SCSS */
$brand: #ff1100;
/* SwiftUI */
Color(red: 1.000, green: 0.067, blue: 0.000)
/* Android */
Color.parseColor("#ff1100")Accessibility — WCAG contrast
Aa
#ff1100 on white: 3.94:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff1100 on black: 5.33:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green6.7%
Blue0.0%
CMYK percentages
Cyan0.0%
Magenta93.3%
Yellow100.0%
Key (black)0.0%
Color previews
#ff1100 text on a black background
contrast 5.33:1
Card sample
#ff1100 text on a white background
contrast 3.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff1100;
Background color
Panel with #ff1100 background
background-color: #ff1100;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff1100;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 17, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 17, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff1100; background: linear-gradient(135deg, #ff1100, #FFBB00);