#643021
a dark, vivid red · warm · closest name: sienna
RGB
100, 48, 33
HSL
13°, 50%, 26%
CMYK
0, 52, 67, 61
Luminance
0.0493
Every format
| HEX | #643021 |
| RGB | rgb(100, 48, 33) |
| HSL | hsl(13, 50%, 26%) |
| CMYK | cmyk(0%, 52%, 67%, 61%) |
| LAB | lab(26.6 22.0 20.2) |
| LCH | lch(26.6 29.9 42.6) |
| OKLCH | oklch(0.375 0.079 36.9) |
Copy-ready code
/* CSS */
color: #643021;
background-color: #643021;
/* Tailwind (arbitrary) */
class="text-[#643021] bg-[#643021]"
/* SCSS */
$brand: #643021;
/* SwiftUI */
Color(red: 0.392, green: 0.188, blue: 0.129)
/* Android */
Color.parseColor("#643021")Accessibility — WCAG contrast
Aa
#643021 on white: 10.57:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#643021 on black: 1.99:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green18.8%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta52.0%
Yellow67.0%
Key (black)60.8%
Color previews
#643021 text on a black background
contrast 1.99:1
Card sample
#643021 text on a white background
contrast 10.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #643021;
Background color
Panel with #643021 background
background-color: #643021;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #643021;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 48, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 48, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #643021; background: linear-gradient(135deg, #643021, #645D21);