#996770

CSS

:root {
  --cinnapink: #996770;
  --cinnapink-rgb: 153 103 112;
  --cinnapink-oklch: oklch(0.569 0.065 7.5);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(349 20% 50%);
  border-color: oklch(0.569 0.065 7.5);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #996770;
  --color-cinnapink-50: #ffeef1;
  --color-cinnapink-100: #fddfe3;
  --color-cinnapink-200: #efc9ce;
  --color-cinnapink-300: #d6aab0;
  --color-cinnapink-400: #c18f97;
  --color-cinnapink-500: #ac747e;
  --color-cinnapink-600: #92626b;
  --color-cinnapink-700: #754f55;
  --color-cinnapink-800: #56393f;
  --color-cinnapink-900: #3c272b;
  --color-cinnapink-950: #261519;
}

SCSS

$cinnapink: #996770;
$cinnapink-rgb: 153, 103, 112;
$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);
}