#ac4b21
a dark, vivid orange · warm · closest name: sienna
RGB
172, 75, 33
HSL
18°, 68%, 40%
CMYK
0, 56, 81, 33
Luminance
0.1391
Every format
| HEX | #ac4b21 |
| RGB | rgb(172, 75, 33) |
| HSL | hsl(18, 68%, 40%) |
| CMYK | cmyk(0%, 56%, 81%, 33%) |
| LAB | lab(44.1 37.3 42.7) |
| LCH | lch(44.1 56.7 48.8) |
| OKLCH | oklch(0.532 0.138 41.8) |
Copy-ready code
/* CSS */
color: #ac4b21;
background-color: #ac4b21;
/* Tailwind (arbitrary) */
class="text-[#ac4b21] bg-[#ac4b21]"
/* SCSS */
$brand: #ac4b21;
/* SwiftUI */
Color(red: 0.675, green: 0.294, blue: 0.129)
/* Android */
Color.parseColor("#ac4b21")Accessibility — WCAG contrast
Aa
#ac4b21 on white: 5.55:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#ac4b21 on black: 3.78:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red67.5%
Green29.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta56.4%
Yellow80.8%
Key (black)32.5%
Color previews
#ac4b21 text on a black background
contrast 3.78:1
Card sample
#ac4b21 text on a white background
contrast 5.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ac4b21;
Background color
Panel with #ac4b21 background
background-color: #ac4b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ac4b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(172, 75, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 75, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac4b21; background: linear-gradient(135deg, #ac4b21, #ACA821);