#ef1b31
a balanced, electric red · warm · closest name: crimson
RGB
239, 27, 49
HSL
354°, 87%, 52%
CMYK
0, 89, 80, 6
Luminance
0.1936
Every format
| HEX | #ef1b31 |
| RGB | rgb(239, 27, 49) |
| HSL | hsl(354, 87%, 52%) |
| CMYK | cmyk(0%, 89%, 80%, 6%) |
| LAB | lab(51.1 74.3 45.5) |
| LCH | lch(51.1 87.1 31.4) |
| OKLCH | oklch(0.607 0.236 24.5) |
Copy-ready code
/* CSS */
color: #ef1b31;
background-color: #ef1b31;
/* Tailwind (arbitrary) */
class="text-[#ef1b31] bg-[#ef1b31]"
/* SCSS */
$brand: #ef1b31;
/* SwiftUI */
Color(red: 0.937, green: 0.106, blue: 0.192)
/* Android */
Color.parseColor("#ef1b31")Accessibility — WCAG contrast
Aa
#ef1b31 on white: 4.31:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ef1b31 on black: 4.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green10.6%
Blue19.2%
CMYK percentages
Cyan0.0%
Magenta88.7%
Yellow79.5%
Key (black)6.3%
Color previews
#ef1b31 text on a black background
contrast 4.87:1
Card sample
#ef1b31 text on a white background
contrast 4.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ef1b31;
Background color
Panel with #ef1b31 background
background-color: #ef1b31;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ef1b31;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 27, 49, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 27, 49, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ef1b31; background: linear-gradient(135deg, #ef1b31, #EF931B);