#553F1F

CSS

:root {
  --avocado-stone: #553f1f;
  --avocado-stone-rgb: 85 63 31;
  --avocado-stone-oklch: oklch(0.384 0.056 75.1);
}

.element {
  color: var(--avocado-stone);
  background-color: hsl(36 47% 23%);
  border-color: oklch(0.384 0.056 75.1);
}

Tailwind CSS v4

@theme {
  --color-avocado-stone: #553f1f;
  --color-avocado-stone-50: #fef3e4;
  --color-avocado-stone-100: #f3e6d4;
  --color-avocado-stone-200: #e2d2ba;
  --color-avocado-stone-300: #c8b498;
  --color-avocado-stone-400: #b29a7a;
  --color-avocado-stone-500: #9c815c;
  --color-avocado-stone-600: #846d4e;
  --color-avocado-stone-700: #6a573e;
  --color-avocado-stone-800: #4e3f2d;
  --color-avocado-stone-900: #372c1e;
  --color-avocado-stone-950: #21190e;
}

SCSS

$avocado-stone: #553f1f;
$avocado-stone-rgb: 85, 63, 31;
$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);
}