#C78176

CSS

:root {
  --whisky: #c78176;
  --whisky-rgb: 199 129 118;
  --whisky-oklch: oklch(0.673 0.089 29.4);
}

.element {
  color: var(--whisky);
  background-color: hsl(8 42% 62%);
  border-color: oklch(0.673 0.089 29.4);
}

Tailwind CSS v4

@theme {
  --color-whisky: #c78176;
  --color-whisky-50: #ffece6;
  --color-whisky-100: #ffded6;
  --color-whisky-200: #f8c7bd;
  --color-whisky-300: #e1a79c;
  --color-whisky-400: #ce8a80;
  --color-whisky-500: #ba6f63;
  --color-whisky-600: #9d5e54;
  --color-whisky-700: #7e4b43;
  --color-whisky-800: #5e3631;
  --color-whisky-900: #422521;
  --color-whisky-950: #2a1311;
}

SCSS

$whisky: #c78176;
$whisky-rgb: 199, 129, 118;
$whisky-light: mix(#fff, $whisky, 20%);
$whisky-dark: mix(#000, $whisky, 20%);

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