#A36474

CSS

:root {
  --cinnapink: #a36474;
  --cinnapink-rgb: 163 100 116;
  --cinnapink-oklch: oklch(0.577 0.084 3.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(345 26% 52%);
  border-color: oklch(0.577 0.084 3.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a36474;
  --color-cinnapink-50: #ffecf2;
  --color-cinnapink-100: #ffdde4;
  --color-cinnapink-200: #f5c6cf;
  --color-cinnapink-300: #dea6b1;
  --color-cinnapink-400: #c98a99;
  --color-cinnapink-500: #b56e80;
  --color-cinnapink-600: #995d6c;
  --color-cinnapink-700: #7a4b57;
  --color-cinnapink-800: #5a3640;
  --color-cinnapink-900: #3f252c;
  --color-cinnapink-950: #281319;
}

SCSS

$cinnapink: #a36474;
$cinnapink-rgb: 163, 100, 116;
$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);
}