#ff2837
a balanced, electric red · warm · closest name: crimson
RGB
255, 40, 55
HSL
356°, 100%, 58%
CMYK
0, 84, 78, 0
Luminance
0.2305
Every format
| HEX | #ff2837 |
| RGB | rgb(255, 40, 55) |
| HSL | hsl(356, 100%, 58%) |
| CMYK | cmyk(0%, 84%, 78%, 0%) |
| LAB | lab(55.1 76.3 47.3) |
| LCH | lch(55.1 89.8 31.8) |
| OKLCH | oklch(0.643 0.243 24.9) |
Copy-ready code
/* CSS */
color: #ff2837;
background-color: #ff2837;
/* Tailwind (arbitrary) */
class="text-[#ff2837] bg-[#ff2837]"
/* SCSS */
$brand: #ff2837;
/* SwiftUI */
Color(red: 1.000, green: 0.157, blue: 0.216)
/* Android */
Color.parseColor("#ff2837")Accessibility — WCAG contrast
Aa
#ff2837 on white: 3.74:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff2837 on black: 5.61:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green15.7%
Blue21.6%
CMYK percentages
Cyan0.0%
Magenta84.3%
Yellow78.4%
Key (black)0.0%
Color previews
#ff2837 text on a black background
contrast 5.61:1
Card sample
#ff2837 text on a white background
contrast 3.74:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff2837;
Background color
Panel with #ff2837 background
background-color: #ff2837;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff2837;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 40, 55, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 40, 55, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff2837; background: linear-gradient(135deg, #ff2837, #FFA828);