#8D715B

CSS

:root {
  --whisky-barrel: #8d715b;
  --whisky-barrel-rgb: 141 113 91;
  --whisky-barrel-oklch: oklch(0.57 0.048 59.8);
}

.element {
  color: var(--whisky-barrel);
  background-color: hsl(26 22% 45%);
  border-color: oklch(0.57 0.048 59.8);
}

Tailwind CSS v4

@theme {
  --color-whisky-barrel: #8d715b;
  --color-whisky-barrel-50: #fff2e8;
  --color-whisky-barrel-100: #f4e5d8;
  --color-whisky-barrel-200: #e4d0c0;
  --color-whisky-barrel-300: #cab29f;
  --color-whisky-barrel-400: #b49882;
  --color-whisky-barrel-500: #9e7f66;
  --color-whisky-barrel-600: #866c57;
  --color-whisky-barrel-700: #6b5645;
  --color-whisky-barrel-800: #4f3e32;
  --color-whisky-barrel-900: #372b22;
  --color-whisky-barrel-950: #221811;
}

SCSS

$whisky-barrel: #8d715b;
$whisky-barrel-rgb: 141, 113, 91;
$whisky-barrel-light: mix(#fff, $whisky-barrel, 20%);
$whisky-barrel-dark: mix(#000, $whisky-barrel, 20%);

.element {
  color: $whisky-barrel;
  box-shadow: 0 0 0 2px rgba($whisky-barrel, 0.35);
}