#A36171

CSS

:root {
  --cinnapink: #a36171;
  --cinnapink-rgb: 163 97 113;
  --cinnapink-oklch: oklch(0.571 0.088 4.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(345 26% 51%);
  border-color: oklch(0.571 0.088 4.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a36171;
  --color-cinnapink-50: #ffebf1;
  --color-cinnapink-100: #ffdce3;
  --color-cinnapink-200: #f6c5ce;
  --color-cinnapink-300: #dfa5b0;
  --color-cinnapink-400: #cb8998;
  --color-cinnapink-500: #b76d7f;
  --color-cinnapink-600: #9a5c6b;
  --color-cinnapink-700: #7c4a56;
  --color-cinnapink-800: #5c3540;
  --color-cinnapink-900: #40242c;
  --color-cinnapink-950: #291319;
}

SCSS

$cinnapink: #a36171;
$cinnapink-rgb: 163, 97, 113;
$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);
}