#ef1f00
a balanced, electric red · warm · closest name: red
RGB
239, 31, 0
HSL
8°, 100%, 47%
CMYK
0, 87, 100, 6
Luminance
0.1933
Every format
| HEX | #ef1f00 |
| RGB | rgb(239, 31, 0) |
| HSL | hsl(8, 100%, 47%) |
| CMYK | cmyk(0%, 87%, 100%, 6%) |
| LAB | lab(51.1 72.9 64.4) |
| LCH | lch(51.1 97.3 41.4) |
| OKLCH | oklch(0.606 0.237 30.8) |
Copy-ready code
/* CSS */
color: #ef1f00;
background-color: #ef1f00;
/* Tailwind (arbitrary) */
class="text-[#ef1f00] bg-[#ef1f00]"
/* SCSS */
$brand: #ef1f00;
/* SwiftUI */
Color(red: 0.937, green: 0.122, blue: 0.000)
/* Android */
Color.parseColor("#ef1f00")Accessibility — WCAG contrast
Aa
#ef1f00 on white: 4.32:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ef1f00 on black: 4.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green12.2%
Blue0.0%
CMYK percentages
Cyan0.0%
Magenta87.0%
Yellow100.0%
Key (black)6.3%
Color previews
#ef1f00 text on a black background
contrast 4.87:1
Card sample
#ef1f00 text on a white background
contrast 4.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ef1f00;
Background color
Panel with #ef1f00 background
background-color: #ef1f00;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ef1f00;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 31, 0, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 31, 0, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ef1f00; background: linear-gradient(135deg, #ef1f00, #EFBF00);