Red Oxide

CSS

:root {
  --red-oxide: #5d1f1e;
  --red-oxide-rgb: 93 31 30;
  --red-oxide-oklch: oklch(0.335 0.091 24.3);
}

.element {
  color: var(--red-oxide);
  background-color: hsl(1 51% 24%);
  border-color: oklch(0.335 0.091 24.3);
}

Tailwind CSS v4

@theme {
  --color-red-oxide: #5d1f1e;
  --color-red-oxide-50: #ffece8;
  --color-red-oxide-100: #ffddd8;
  --color-red-oxide-200: #f9c6c0;
  --color-red-oxide-300: #e3a69f;
  --color-red-oxide-400: #cf8984;
  --color-red-oxide-500: #bb6d68;
  --color-red-oxide-600: #9e5d58;
  --color-red-oxide-700: #7f4a46;
  --color-red-oxide-800: #5e3534;
  --color-red-oxide-900: #422423;
  --color-red-oxide-950: #2a1312;
}

SCSS

$red-oxide: #5d1f1e;
$red-oxide-rgb: 93, 31, 30;
$red-oxide-light: mix(#fff, $red-oxide, 20%);
$red-oxide-dark: mix(#000, $red-oxide, 20%);

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