#A66371

CSS

:root {
  --cinnapink: #a66371;
  --cinnapink-rgb: 166 99 113;
  --cinnapink-oklch: oklch(0.578 0.088 6.7);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(347 27% 52%);
  border-color: oklch(0.578 0.088 6.7);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a66371;
  --color-cinnapink-50: #ffebf0;
  --color-cinnapink-100: #ffdce2;
  --color-cinnapink-200: #f7c5cc;
  --color-cinnapink-300: #e0a5ae;
  --color-cinnapink-400: #cc8996;
  --color-cinnapink-500: #b86d7c;
  --color-cinnapink-600: #9b5c69;
  --color-cinnapink-700: #7c4a54;
  --color-cinnapink-800: #5c353e;
  --color-cinnapink-900: #40242b;
  --color-cinnapink-950: #291318;
}

SCSS

$cinnapink: #a66371;
$cinnapink-rgb: 166, 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);
}