#956969

CSS

:root {
  --cinnapink: #956969;
  --cinnapink-rgb: 149 105 105;
  --cinnapink-oklch: oklch(0.566 0.057 19);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(0 17% 50%);
  border-color: oklch(0.566 0.057 19);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #956969;
  --color-cinnapink-50: #ffefee;
  --color-cinnapink-100: #fbe1e0;
  --color-cinnapink-200: #eccbca;
  --color-cinnapink-300: #d3acab;
  --color-cinnapink-400: #be9191;
  --color-cinnapink-500: #a97777;
  --color-cinnapink-600: #8f6565;
  --color-cinnapink-700: #725151;
  --color-cinnapink-800: #543a3b;
  --color-cinnapink-900: #3b2829;
  --color-cinnapink-950: #251617;
}

SCSS

$cinnapink: #956969;
$cinnapink-rgb: 149, 105, 105;
$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);
}