#A76371

CSS

:root {
  --cinnapink: #a76371;
  --cinnapink-rgb: 167 99 113;
  --cinnapink-oklch: oklch(0.579 0.089 6.9);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(348 28% 52%);
  border-color: oklch(0.579 0.089 6.9);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a76371;
  --color-cinnapink-50: #ffebf0;
  --color-cinnapink-100: #ffdce2;
  --color-cinnapink-200: #f7c5cc;
  --color-cinnapink-300: #e1a5ae;
  --color-cinnapink-400: #cc8895;
  --color-cinnapink-500: #b86c7c;
  --color-cinnapink-600: #9c5c69;
  --color-cinnapink-700: #7d4954;
  --color-cinnapink-800: #5c353e;
  --color-cinnapink-900: #41242b;
  --color-cinnapink-950: #291318;
}

SCSS

$cinnapink: #a76371;
$cinnapink-rgb: 167, 99, 113;
$cinnapink-light: mix(#fff, $cinnapink, 20%);
$cinnapink-dark: mix(#000, $cinnapink, 20%);

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