#B49574

CSS

:root {
  --cookie-crumb: #b49574;
  --cookie-crumb-rgb: 180 149 116;
  --cookie-crumb-oklch: oklch(0.69 0.059 68.4);
}

.element {
  color: var(--cookie-crumb);
  background-color: hsl(31 30% 58%);
  border-color: oklch(0.69 0.059 68.4);
}

Tailwind CSS v4

@theme {
  --color-cookie-crumb: #b49574;
  --color-cookie-crumb-50: #fff3e3;
  --color-cookie-crumb-100: #f5e5d3;
  --color-cookie-crumb-200: #e5d1ba;
  --color-cookie-crumb-300: #cbb397;
  --color-cookie-crumb-400: #b69879;
  --color-cookie-crumb-500: #a07f5b;
  --color-cookie-crumb-600: #886c4e;
  --color-cookie-crumb-700: #6d563e;
  --color-cookie-crumb-800: #513e2c;
  --color-cookie-crumb-900: #382b1e;
  --color-cookie-crumb-950: #23180e;
}

SCSS

$cookie-crumb: #b49574;
$cookie-crumb-rgb: 180, 149, 116;
$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);
}