#ff5721
a balanced, electric red · warm · closest name: tomato
RGB
255, 87, 33
HSL
15°, 100%, 57%
CMYK
0, 66, 87, 0
Luminance
0.2819
Every format
| HEX | #ff5721 |
| RGB | rgb(255, 87, 33) |
| HSL | hsl(15, 100%, 57%) |
| CMYK | cmyk(0%, 66%, 87%, 0%) |
| LAB | lab(60.1 61.6 61.9) |
| LCH | lch(60.1 87.4 45.1) |
| OKLCH | oklch(0.679 0.213 36.7) |
Copy-ready code
/* CSS */
color: #ff5721;
background-color: #ff5721;
/* Tailwind (arbitrary) */
class="text-[#ff5721] bg-[#ff5721]"
/* SCSS */
$brand: #ff5721;
/* SwiftUI */
Color(red: 1.000, green: 0.341, blue: 0.129)
/* Android */
Color.parseColor("#ff5721")Accessibility — WCAG contrast
Aa
#ff5721 on white: 3.16:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff5721 on black: 6.64:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green34.1%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta65.9%
Yellow87.1%
Key (black)0.0%
Color previews
#ff5721 text on a black background
contrast 6.64:1
Card sample
#ff5721 text on a white background
contrast 3.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff5721;
Background color
Panel with #ff5721 background
background-color: #ff5721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff5721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 87, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 87, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff5721; background: linear-gradient(135deg, #ff5721, #FFEB21);