#ff3f21
a balanced, electric red · warm · closest name: red
RGB
255, 63, 33
HSL
8°, 100%, 57%
CMYK
0, 75, 87, 0
Luminance
0.2492
Every format
| HEX | #ff3f21 |
| RGB | rgb(255, 63, 33) |
| HSL | hsl(8, 100%, 57%) |
| CMYK | cmyk(0%, 75%, 87%, 0%) |
| LAB | lab(57.0 70.0 59.5) |
| LCH | lch(57.0 91.9 40.4) |
| OKLCH | oklch(0.656 0.231 31.7) |
Copy-ready code
/* CSS */
color: #ff3f21;
background-color: #ff3f21;
/* Tailwind (arbitrary) */
class="text-[#ff3f21] bg-[#ff3f21]"
/* SCSS */
$brand: #ff3f21;
/* SwiftUI */
Color(red: 1.000, green: 0.247, blue: 0.129)
/* Android */
Color.parseColor("#ff3f21")Accessibility — WCAG contrast
Aa
#ff3f21 on white: 3.51:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff3f21 on black: 5.98:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green24.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta75.3%
Yellow87.1%
Key (black)0.0%
Color previews
#ff3f21 text on a black background
contrast 5.98:1
Card sample
#ff3f21 text on a white background
contrast 3.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff3f21;
Background color
Panel with #ff3f21 background
background-color: #ff3f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff3f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 63, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 63, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff3f21; background: linear-gradient(135deg, #ff3f21, #FFD321);