#ef1b03
a balanced, electric red · warm · closest name: red
RGB
239, 27, 3
HSL
6°, 98%, 48%
CMYK
0, 89, 99, 6
Luminance
0.1914
Every format
| HEX | #ef1b03 |
| RGB | rgb(239, 27, 3) |
| HSL | hsl(6, 98%, 48%) |
| CMYK | cmyk(0%, 89%, 99%, 6%) |
| LAB | lab(50.9 73.6 63.5) |
| LCH | lch(50.9 97.2 40.8) |
| OKLCH | oklch(0.605 0.239 30.3) |
Copy-ready code
/* CSS */
color: #ef1b03;
background-color: #ef1b03;
/* Tailwind (arbitrary) */
class="text-[#ef1b03] bg-[#ef1b03]"
/* SCSS */
$brand: #ef1b03;
/* SwiftUI */
Color(red: 0.937, green: 0.106, blue: 0.012)
/* Android */
Color.parseColor("#ef1b03")Accessibility — WCAG contrast
Aa
#ef1b03 on white: 4.35:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ef1b03 on black: 4.83:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green10.6%
Blue1.2%
CMYK percentages
Cyan0.0%
Magenta88.7%
Yellow98.7%
Key (black)6.3%
Color previews
#ef1b03 text on a black background
contrast 4.83:1
Card sample
#ef1b03 text on a white background
contrast 4.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ef1b03;
Background color
Panel with #ef1b03 background
background-color: #ef1b03;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ef1b03;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 27, 3, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 27, 3, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ef1b03; background: linear-gradient(135deg, #ef1b03, #EFB903);