#473511

CSS

:root {
  --avocado-stone: #473511;
  --avocado-stone-rgb: 71 53 17;
  --avocado-stone-oklch: oklch(0.341 0.057 81.9);
}

.element {
  color: var(--avocado-stone);
  background-color: hsl(40 61% 17%);
  border-color: oklch(0.341 0.057 81.9);
}

Tailwind CSS v4

@theme {
  --color-avocado-stone: #473511;
  --color-avocado-stone-50: #fdf4e3;
  --color-avocado-stone-100: #f1e7d3;
  --color-avocado-stone-200: #e0d3b9;
  --color-avocado-stone-300: #c5b597;
  --color-avocado-stone-400: #b09c78;
  --color-avocado-stone-500: #99835a;
  --color-avocado-stone-600: #826f4d;
  --color-avocado-stone-700: #68593d;
  --color-avocado-stone-800: #4d402b;
  --color-avocado-stone-900: #352c1d;
  --color-avocado-stone-950: #21190d;
}

SCSS

$avocado-stone: #473511;
$avocado-stone-rgb: 71, 53, 17;
$avocado-stone-light: mix(#fff, $avocado-stone, 20%);
$avocado-stone-dark: mix(#000, $avocado-stone, 20%);

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