#8F7058

CSS

:root {
  --whisky-barrel: #8f7058;
  --whisky-barrel-rgb: 143 112 88;
  --whisky-barrel-oklch: oklch(0.569 0.053 59.2);
}

.element {
  color: var(--whisky-barrel);
  background-color: hsl(26 24% 45%);
  border-color: oklch(0.569 0.053 59.2);
}

Tailwind CSS v4

@theme {
  --color-whisky-barrel: #8f7058;
  --color-whisky-barrel-50: #fff2e6;
  --color-whisky-barrel-100: #f6e4d7;
  --color-whisky-barrel-200: #e6d0be;
  --color-whisky-barrel-300: #ccb29d;
  --color-whisky-barrel-400: #b79780;
  --color-whisky-barrel-500: #a17e63;
  --color-whisky-barrel-600: #886b54;
  --color-whisky-barrel-700: #6d5543;
  --color-whisky-barrel-800: #513e30;
  --color-whisky-barrel-900: #382b21;
  --color-whisky-barrel-950: #231810;
}

SCSS

$whisky-barrel: #8f7058;
$whisky-barrel-rgb: 143, 112, 88;
$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);
}