#ac4321
a dark, vivid red · warm · closest name: sienna
RGB
172, 67, 33
HSL
15°, 68%, 40%
CMYK
0, 61, 81, 33
Luminance
0.1289
Every format
| HEX | #ac4321 |
| RGB | rgb(172, 67, 33) |
| HSL | hsl(15, 68%, 40%) |
| CMYK | cmyk(0%, 61%, 81%, 33%) |
| LAB | lab(42.6 41.3 41.2) |
| LCH | lch(42.6 58.3 45.0) |
| OKLCH | oklch(0.521 0.146 37.7) |
Copy-ready code
/* CSS */
color: #ac4321;
background-color: #ac4321;
/* Tailwind (arbitrary) */
class="text-[#ac4321] bg-[#ac4321]"
/* SCSS */
$brand: #ac4321;
/* SwiftUI */
Color(red: 0.675, green: 0.263, blue: 0.129)
/* Android */
Color.parseColor("#ac4321")Accessibility — WCAG contrast
Aa
#ac4321 on white: 5.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac4321 on black: 3.58:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green26.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta61.0%
Yellow80.8%
Key (black)32.5%
Color previews
#ac4321 text on a black background
contrast 3.58:1
Card sample
#ac4321 text on a white background
contrast 5.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac4321;
Background color
Panel with #ac4321 background
background-color: #ac4321;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac4321;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 67, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 67, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac4321; background: linear-gradient(135deg, #ac4321, #ACA021);