#ac331e
a dark, vivid red · warm · closest name: firebrick
RGB
172, 51, 30
HSL
9°, 70%, 40%
CMYK
0, 70, 83, 33
Luminance
0.1123
Every format
| HEX | #ac331e |
| RGB | rgb(172, 51, 30) |
| HSL | hsl(9, 70%, 40%) |
| CMYK | cmyk(0%, 70%, 83%, 33%) |
| LAB | lab(40.0 48.2 40.2) |
| LCH | lch(40.0 62.8 39.9) |
| OKLCH | oklch(0.501 0.161 32.3) |
Copy-ready code
/* CSS */
color: #ac331e;
background-color: #ac331e;
/* Tailwind (arbitrary) */
class="text-[#ac331e] bg-[#ac331e]"
/* SCSS */
$brand: #ac331e;
/* SwiftUI */
Color(red: 0.675, green: 0.200, blue: 0.118)
/* Android */
Color.parseColor("#ac331e")Accessibility — WCAG contrast
Aa
#ac331e on white: 6.47:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac331e on black: 3.25:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green20.0%
Blue11.8%
CMYK percentages
Cyan0.0%
Magenta70.3%
Yellow82.6%
Key (black)32.5%
Color previews
#ac331e text on a black background
contrast 3.25:1
Card sample
#ac331e text on a white background
contrast 6.47:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac331e;
Background color
Panel with #ac331e background
background-color: #ac331e;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac331e;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 51, 30, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 51, 30, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac331e; background: linear-gradient(135deg, #ac331e, #AC921E);