#7B7946

CSS

:root {
  --tree-hugger: #7b7946;
  --tree-hugger-rgb: 123 121 70;
  --tree-hugger-oklch: oklch(0.565 0.071 106.5);
}

.element {
  color: var(--tree-hugger);
  background-color: hsl(58 27% 38%);
  border-color: oklch(0.565 0.071 106.5);
}

Tailwind CSS v4

@theme {
  --color-tree-hugger: #7b7946;
  --color-tree-hugger-50: #f6f7e0;
  --color-tree-hugger-100: #e9eacf;
  --color-tree-hugger-200: #d6d7b4;
  --color-tree-hugger-300: #babb91;
  --color-tree-hugger-400: #a3a270;
  --color-tree-hugger-500: #8c8950;
  --color-tree-hugger-600: #767444;
  --color-tree-hugger-700: #5f5d36;
  --color-tree-hugger-800: #464426;
  --color-tree-hugger-900: #302f19;
  --color-tree-hugger-950: #1d1b0a;
}

SCSS

$tree-hugger: #7b7946;
$tree-hugger-rgb: 123, 121, 70;
$tree-hugger-light: mix(#fff, $tree-hugger, 20%);
$tree-hugger-dark: mix(#000, $tree-hugger, 20%);

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