#f04539
a balanced, electric red · warm · closest name: tomato
RGB
240, 69, 57
HSL
4°, 86%, 58%
CMYK
0, 71, 76, 6
Luminance
0.2308
Every format
| HEX | #f04539 |
| RGB | rgb(240, 69, 57) |
| HSL | hsl(4, 86%, 58%) |
| CMYK | cmyk(0%, 71%, 76%, 6%) |
| LAB | lab(55.2 64.2 45.4) |
| LCH | lch(55.2 78.7 35.3) |
| OKLCH | oklch(0.638 0.209 28.5) |
Copy-ready code
/* CSS */
color: #f04539;
background-color: #f04539;
/* Tailwind (arbitrary) */
class="text-[#f04539] bg-[#f04539]"
/* SCSS */
$brand: #f04539;
/* SwiftUI */
Color(red: 0.941, green: 0.271, blue: 0.224)
/* Android */
Color.parseColor("#f04539")Accessibility — WCAG contrast
Aa
#f04539 on white: 3.74:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#f04539 on black: 5.62:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red94.1%
Green27.1%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta71.3%
Yellow76.3%
Key (black)5.9%
Color previews
#f04539 text on a black background
contrast 5.62:1
Card sample
#f04539 text on a white background
contrast 3.74:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f04539;
Background color
Panel with #f04539 background
background-color: #f04539;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f04539;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(240, 69, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(240, 69, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f04539; background: linear-gradient(135deg, #f04539, #F0BF39);