#A5646C

CSS

:root {
  --cinnapink: #a5646c;
  --cinnapink-rgb: 165 100 108;
  --cinnapink-oklch: oklch(0.577 0.084 12.1);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(353 27% 52%);
  border-color: oklch(0.577 0.084 12.1);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a5646c;
  --color-cinnapink-50: #ffecee;
  --color-cinnapink-100: #ffdddf;
  --color-cinnapink-200: #f6c6c9;
  --color-cinnapink-300: #dfa6aa;
  --color-cinnapink-400: #cb8a91;
  --color-cinnapink-500: #b76e77;
  --color-cinnapink-600: #9a5d65;
  --color-cinnapink-700: #7c4b51;
  --color-cinnapink-800: #5c363c;
  --color-cinnapink-900: #402529;
  --color-cinnapink-950: #291317;
}

SCSS

$cinnapink: #a5646c;
$cinnapink-rgb: 165, 100, 108;
$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);
}