#8B7049

CSS

:root {
  --tobacco-leaf: #8b7049;
  --tobacco-leaf-rgb: 139 112 73;
  --tobacco-leaf-oklch: oklch(0.562 0.064 76);
}

.element {
  color: var(--tobacco-leaf);
  background-color: hsl(35 31% 42%);
  border-color: oklch(0.562 0.064 76);
}

Tailwind CSS v4

@theme {
  --color-tobacco-leaf: #8b7049;
  --color-tobacco-leaf-50: #fff3e1;
  --color-tobacco-leaf-100: #f4e6d0;
  --color-tobacco-leaf-200: #e4d1b6;
  --color-tobacco-leaf-300: #cab493;
  --color-tobacco-leaf-400: #b59a74;
  --color-tobacco-leaf-500: #9f8155;
  --color-tobacco-leaf-600: #866d48;
  --color-tobacco-leaf-700: #6c5739;
  --color-tobacco-leaf-800: #503f29;
  --color-tobacco-leaf-900: #382b1b;
  --color-tobacco-leaf-950: #22190c;
}

SCSS

$tobacco-leaf: #8b7049;
$tobacco-leaf-rgb: 139, 112, 73;
$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);
}