#e31021
a balanced, electric red · warm · closest name: crimson
RGB
227, 16, 33
HSL
355°, 87%, 48%
CMYK
0, 93, 86, 11
Luminance
0.1681
Every format
| HEX | #e31021 |
| RGB | rgb(227, 16, 33) |
| HSL | hsl(355, 87%, 48%) |
| CMYK | cmyk(0%, 93%, 86%, 11%) |
| LAB | lab(48.0 72.4 50.0) |
| LCH | lch(48.0 88.0 34.7) |
| OKLCH | oklch(0.580 0.231 26.5) |
Copy-ready code
/* CSS */
color: #e31021;
background-color: #e31021;
/* Tailwind (arbitrary) */
class="text-[#e31021] bg-[#e31021]"
/* SCSS */
$brand: #e31021;
/* SwiftUI */
Color(red: 0.890, green: 0.063, blue: 0.129)
/* Android */
Color.parseColor("#e31021")Accessibility — WCAG contrast
Aa
#e31021 on white: 4.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#e31021 on black: 4.36:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red89.0%
Green6.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta93.0%
Yellow85.5%
Key (black)11.0%
Color previews
#e31021 text on a black background
contrast 4.36:1
Card sample
#e31021 text on a white background
contrast 4.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #e31021;
Background color
Panel with #e31021 background
background-color: #e31021;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #e31021;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(227, 16, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(227, 16, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #e31021; background: linear-gradient(135deg, #e31021, #E38C10);