#8B7350

CSS

:root {
  --tobacco-leaf: #8b7350;
  --tobacco-leaf-rgb: 139 115 80;
  --tobacco-leaf-oklch: oklch(0.57 0.058 76.6);
}

.element {
  color: var(--tobacco-leaf);
  background-color: hsl(36 27% 43%);
  border-color: oklch(0.57 0.058 76.6);
}

Tailwind CSS v4

@theme {
  --color-tobacco-leaf: #8b7350;
  --color-tobacco-leaf-50: #fef4e3;
  --color-tobacco-leaf-100: #f3e6d3;
  --color-tobacco-leaf-200: #e2d2b9;
  --color-tobacco-leaf-300: #c8b497;
  --color-tobacco-leaf-400: #b29a78;
  --color-tobacco-leaf-500: #9c815a;
  --color-tobacco-leaf-600: #846e4d;
  --color-tobacco-leaf-700: #6a583d;
  --color-tobacco-leaf-800: #4e402c;
  --color-tobacco-leaf-900: #372c1d;
  --color-tobacco-leaf-950: #21190d;
}

SCSS

$tobacco-leaf: #8b7350;
$tobacco-leaf-rgb: 139, 115, 80;
$tobacco-leaf-light: mix(#fff, $tobacco-leaf, 20%);
$tobacco-leaf-dark: mix(#000, $tobacco-leaf, 20%);

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