#9C6665

CSS

:root {
  --cinnapink: #9c6665;
  --cinnapink-rgb: 156 102 101;
  --cinnapink-oklch: oklch(0.568 0.07 20.7);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(1 22% 50%);
  border-color: oklch(0.568 0.07 20.7);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9c6665;
  --color-cinnapink-50: #ffeeec;
  --color-cinnapink-100: #ffdfdd;
  --color-cinnapink-200: #f1c9c6;
  --color-cinnapink-300: #d9aaa7;
  --color-cinnapink-400: #c58e8d;
  --color-cinnapink-500: #b07372;
  --color-cinnapink-600: #956261;
  --color-cinnapink-700: #774e4d;
  --color-cinnapink-800: #583839;
  --color-cinnapink-900: #3e2727;
  --color-cinnapink-950: #271515;
}

SCSS

$cinnapink: #9c6665;
$cinnapink-rgb: 156, 102, 101;
$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);
}