#ef180b
a balanced, electric red · warm · closest name: red
RGB
239, 24, 11
HSL
3°, 91%, 49%
CMYK
0, 90, 95, 6
Luminance
0.1903
Every format
| HEX | #ef180b |
| RGB | rgb(239, 24, 11) |
| HSL | hsl(3, 91%, 49%) |
| CMYK | cmyk(0%, 90%, 95%, 6%) |
| LAB | lab(50.7 74.1 61.5) |
| LCH | lch(50.7 96.3 39.7) |
| OKLCH | oklch(0.604 0.239 29.6) |
Copy-ready code
/* CSS */
color: #ef180b;
background-color: #ef180b;
/* Tailwind (arbitrary) */
class="text-[#ef180b] bg-[#ef180b]"
/* SCSS */
$brand: #ef180b;
/* SwiftUI */
Color(red: 0.937, green: 0.094, blue: 0.043)
/* Android */
Color.parseColor("#ef180b")Accessibility — WCAG contrast
Aa
#ef180b on white: 4.37:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ef180b on black: 4.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green9.4%
Blue4.3%
CMYK percentages
Cyan0.0%
Magenta90.0%
Yellow95.4%
Key (black)6.3%
Color previews
#ef180b text on a black background
contrast 4.81:1
Card sample
#ef180b text on a white background
contrast 4.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ef180b;
Background color
Panel with #ef180b background
background-color: #ef180b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ef180b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 24, 11, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 24, 11, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ef180b; background: linear-gradient(135deg, #ef180b, #EFB00B);