#ad381f
a dark, vivid red · warm · closest name: firebrick
RGB
173, 56, 31
HSL
11°, 70%, 40%
CMYK
0, 68, 82, 32
Luminance
0.1181
Every format
| HEX | #ad381f |
| RGB | rgb(173, 56, 31) |
| HSL | hsl(11, 70%, 40%) |
| CMYK | cmyk(0%, 68%, 82%, 32%) |
| LAB | lab(40.9 46.5 40.7) |
| LCH | lch(40.9 61.8 41.2) |
| OKLCH | oklch(0.508 0.157 33.7) |
Copy-ready code
/* CSS */
color: #ad381f;
background-color: #ad381f;
/* Tailwind (arbitrary) */
class="text-[#ad381f] bg-[#ad381f]"
/* SCSS */
$brand: #ad381f;
/* SwiftUI */
Color(red: 0.678, green: 0.220, blue: 0.122)
/* Android */
Color.parseColor("#ad381f")Accessibility — WCAG contrast
Aa
#ad381f on white: 6.25:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ad381f on black: 3.36:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.8%
Green22.0%
Blue12.2%
CMYK percentages
Cyan0.0%
Magenta67.6%
Yellow82.1%
Key (black)32.2%
Color previews
#ad381f text on a black background
contrast 3.36:1
Card sample
#ad381f text on a white background
contrast 6.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ad381f;
Background color
Panel with #ad381f background
background-color: #ad381f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ad381f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(173, 56, 31, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 56, 31, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ad381f; background: linear-gradient(135deg, #ad381f, #AD971F);