#ff3f3f
a balanced, electric red · warm · closest name: tomato
RGB
255, 63, 63
HSL
0°, 100%, 62%
CMYK
0, 75, 75, 0
Luminance
0.2517
Every format
| HEX | #ff3f3f |
| RGB | rgb(255, 63, 63) |
| HSL | hsl(0, 100%, 62%) |
| CMYK | cmyk(0%, 75%, 75%, 0%) |
| LAB | lab(57.3 70.8 45.2) |
| LCH | lch(57.3 84.0 32.6) |
| OKLCH | oklch(0.659 0.228 26.1) |
Copy-ready code
/* CSS */
color: #ff3f3f;
background-color: #ff3f3f;
/* Tailwind (arbitrary) */
class="text-[#ff3f3f] bg-[#ff3f3f]"
/* SCSS */
$brand: #ff3f3f;
/* SwiftUI */
Color(red: 1.000, green: 0.247, blue: 0.247)
/* Android */
Color.parseColor("#ff3f3f")Accessibility — WCAG contrast
Aa
#ff3f3f on white: 3.48:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#ff3f3f on black: 6.03:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green24.7%
Blue24.7%
CMYK percentages
Cyan0.0%
Magenta75.3%
Yellow75.3%
Key (black)0.0%
Color previews
#ff3f3f text on a black background
contrast 6.03:1
Card sample
#ff3f3f text on a white background
contrast 3.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ff3f3f;
Background color
Panel with #ff3f3f background
background-color: #ff3f3f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ff3f3f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 63, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 63, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff3f3f; background: linear-gradient(135deg, #ff3f3f, #FFBF3F);