#ac4a39
a dark, vivid red · warm · closest name: sienna
RGB
172, 74, 57
HSL
9°, 50%, 45%
CMYK
0, 57, 67, 33
Luminance
0.1396
Every format
| HEX | #ac4a39 |
| RGB | rgb(172, 74, 57) |
| HSL | hsl(9, 50%, 45%) |
| CMYK | cmyk(0%, 57%, 67%, 33%) |
| LAB | lab(44.2 39.0 29.8) |
| LCH | lch(44.2 49.1 37.4) |
| OKLCH | oklch(0.534 0.133 31.7) |
Copy-ready code
/* CSS */
color: #ac4a39;
background-color: #ac4a39;
/* Tailwind (arbitrary) */
class="text-[#ac4a39] bg-[#ac4a39]"
/* SCSS */
$brand: #ac4a39;
/* SwiftUI */
Color(red: 0.675, green: 0.290, blue: 0.224)
/* Android */
Color.parseColor("#ac4a39")Accessibility — WCAG contrast
Aa
#ac4a39 on white: 5.54:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac4a39 on black: 3.79:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green29.0%
Blue22.4%
CMYK percentages
Cyan0.0%
Magenta57.0%
Yellow66.9%
Key (black)32.5%
Color previews
#ac4a39 text on a black background
contrast 3.79:1
Card sample
#ac4a39 text on a white background
contrast 5.54:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac4a39;
Background color
Panel with #ac4a39 background
background-color: #ac4a39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac4a39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 74, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 74, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac4a39; background: linear-gradient(135deg, #ac4a39, #AC9739);