#B19678

CSS

:root {
  --cookie-crumb: #b19678;
  --cookie-crumb-rgb: 177 150 120;
  --cookie-crumb-oklch: oklch(0.69 0.053 69.7);
}

.element {
  color: var(--cookie-crumb);
  background-color: hsl(32 27% 58%);
  border-color: oklch(0.69 0.053 69.7);
}

Tailwind CSS v4

@theme {
  --color-cookie-crumb: #b19678;
  --color-cookie-crumb-50: #fff3e5;
  --color-cookie-crumb-100: #f3e5d5;
  --color-cookie-crumb-200: #e3d1bc;
  --color-cookie-crumb-300: #c9b49a;
  --color-cookie-crumb-400: #b3997d;
  --color-cookie-crumb-500: #9d8060;
  --color-cookie-crumb-600: #856d51;
  --color-cookie-crumb-700: #6a5741;
  --color-cookie-crumb-800: #4f3f2f;
  --color-cookie-crumb-900: #372b1f;
  --color-cookie-crumb-950: #22190f;
}

SCSS

$cookie-crumb: #b19678;
$cookie-crumb-rgb: 177, 150, 120;
$cookie-crumb-light: mix(#fff, $cookie-crumb, 20%);
$cookie-crumb-dark: mix(#000, $cookie-crumb, 20%);

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