#9A6766

CSS

:root {
  --cinnapink: #9a6766;
  --cinnapink-rgb: 154 103 102;
  --cinnapink-oklch: oklch(0.567 0.066 20.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(1 20% 50%);
  border-color: oklch(0.567 0.066 20.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9a6766;
  --color-cinnapink-50: #ffeeec;
  --color-cinnapink-100: #fee0de;
  --color-cinnapink-200: #f0cac7;
  --color-cinnapink-300: #d7aba8;
  --color-cinnapink-400: #c38f8e;
  --color-cinnapink-500: #ae7573;
  --color-cinnapink-600: #936362;
  --color-cinnapink-700: #764f4e;
  --color-cinnapink-800: #573939;
  --color-cinnapink-900: #3d2727;
  --color-cinnapink-950: #261515;
}

SCSS

$cinnapink: #9a6766;
$cinnapink-rgb: 154, 103, 102;
$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);
}