#A36B73

CSS

:root {
  --cinnapink: #a36b73;
  --cinnapink-rgb: 163 107 115;
  --cinnapink-oklch: oklch(0.589 0.072 10.2);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(351 23% 53%);
  border-color: oklch(0.589 0.072 10.2);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a36b73;
  --color-cinnapink-50: #ffedef;
  --color-cinnapink-100: #ffdfe1;
  --color-cinnapink-200: #f1c8cc;
  --color-cinnapink-300: #daa9ad;
  --color-cinnapink-400: #c58d94;
  --color-cinnapink-500: #b0727b;
  --color-cinnapink-600: #956168;
  --color-cinnapink-700: #774d53;
  --color-cinnapink-800: #58383d;
  --color-cinnapink-900: #3e262a;
  --color-cinnapink-950: #271418;
}

SCSS

$cinnapink: #a36b73;
$cinnapink-rgb: 163, 107, 115;
$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);
}