Red Mahogany

CSS

:root {
  --red-mahogany: #663b43;
  --red-mahogany-rgb: 102 59 67;
  --red-mahogany-oklch: oklch(0.407 0.061 8.1);
}

.element {
  color: var(--red-mahogany);
  background-color: hsl(349 27% 32%);
  border-color: oklch(0.407 0.061 8.1);
}

Tailwind CSS v4

@theme {
  --color-red-mahogany: #663b43;
  --color-red-mahogany-50: #ffeef1;
  --color-red-mahogany-100: #fce0e3;
  --color-red-mahogany-200: #edcace;
  --color-red-mahogany-300: #d5abb0;
  --color-red-mahogany-400: #bf9097;
  --color-red-mahogany-500: #aa757e;
  --color-red-mahogany-600: #90636b;
  --color-red-mahogany-700: #734f55;
  --color-red-mahogany-800: #553a3f;
  --color-red-mahogany-900: #3b272b;
  --color-red-mahogany-950: #251519;
}

SCSS

$red-mahogany: #663b43;
$red-mahogany-rgb: 102, 59, 67;
$red-mahogany-light: mix(#fff, $red-mahogany, 20%);
$red-mahogany-dark: mix(#000, $red-mahogany, 20%);

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