#a43f21
a dark, vivid red · warm · closest name: sienna
RGB
164, 63, 33
HSL
14°, 67%, 39%
CMYK
0, 62, 80, 36
Luminance
0.1156
Every format
| HEX | #a43f21 |
| RGB | rgb(164, 63, 33) |
| HSL | hsl(14, 67%, 39%) |
| CMYK | cmyk(0%, 62%, 80%, 36%) |
| LAB | lab(40.5 40.1 38.7) |
| LCH | lch(40.5 55.8 44.0) |
| OKLCH | oklch(0.502 0.141 36.8) |
Copy-ready code
/* CSS */
color: #a43f21;
background-color: #a43f21;
/* Tailwind (arbitrary) */
class="text-[#a43f21] bg-[#a43f21]"
/* SCSS */
$brand: #a43f21;
/* SwiftUI */
Color(red: 0.643, green: 0.247, blue: 0.129)
/* Android */
Color.parseColor("#a43f21")Accessibility — WCAG contrast
Aa
#a43f21 on white: 6.34:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#a43f21 on black: 3.31:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red64.3%
Green24.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta61.6%
Yellow79.9%
Key (black)35.7%
Color previews
#a43f21 text on a black background
contrast 3.31:1
Card sample
#a43f21 text on a white background
contrast 6.34:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #a43f21;
Background color
Panel with #a43f21 background
background-color: #a43f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #a43f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(164, 63, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(164, 63, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a43f21; background: linear-gradient(135deg, #a43f21, #A49621);