#8D715C

CSS

:root {
  --whisky-barrel: #8d715c;
  --whisky-barrel-rgb: 141 113 92;
  --whisky-barrel-oklch: oklch(0.57 0.047 58.5);
}

.element {
  color: var(--whisky-barrel);
  background-color: hsl(26 21% 46%);
  border-color: oklch(0.57 0.047 58.5);
}

Tailwind CSS v4

@theme {
  --color-whisky-barrel: #8d715c;
  --color-whisky-barrel-50: #fff2e8;
  --color-whisky-barrel-100: #f4e5d9;
  --color-whisky-barrel-200: #e4d0c1;
  --color-whisky-barrel-300: #cab2a0;
  --color-whisky-barrel-400: #b49883;
  --color-whisky-barrel-500: #9e7f67;
  --color-whisky-barrel-600: #866c58;
  --color-whisky-barrel-700: #6b5646;
  --color-whisky-barrel-800: #4f3e33;
  --color-whisky-barrel-900: #372b22;
  --color-whisky-barrel-950: #221812;
}

SCSS

$whisky-barrel: #8d715c;
$whisky-barrel-rgb: 141, 113, 92;
$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);
}