#A6646D

CSS

:root {
  --cinnapink: #a6646d;
  --cinnapink-rgb: 166 100 109;
  --cinnapink-oklch: oklch(0.579 0.086 11.3);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(352 27% 52%);
  border-color: oklch(0.579 0.086 11.3);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a6646d;
  --color-cinnapink-50: #ffecee;
  --color-cinnapink-100: #ffdddf;
  --color-cinnapink-200: #f7c6ca;
  --color-cinnapink-300: #e0a6ab;
  --color-cinnapink-400: #cc8992;
  --color-cinnapink-500: #b76d78;
  --color-cinnapink-600: #9b5d65;
  --color-cinnapink-700: #7c4a51;
  --color-cinnapink-800: #5c353c;
  --color-cinnapink-900: #402429;
  --color-cinnapink-950: #291317;
}

SCSS

$cinnapink: #a6646d;
$cinnapink-rgb: 166, 100, 109;
$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);
}