#976A74

CSS

:root {
  --cinnapink: #976a74;
  --cinnapink-rgb: 151 106 116;
  --cinnapink-oklch: oklch(0.574 0.059 4.5);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(347 18% 50%);
  border-color: oklch(0.574 0.059 4.5);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #976a74;
  --color-cinnapink-50: #ffeff2;
  --color-cinnapink-100: #fbe0e5;
  --color-cinnapink-200: #eccad0;
  --color-cinnapink-300: #d3abb2;
  --color-cinnapink-400: #be909a;
  --color-cinnapink-500: #a87681;
  --color-cinnapink-600: #8e646d;
  --color-cinnapink-700: #725057;
  --color-cinnapink-800: #543a40;
  --color-cinnapink-900: #3b282c;
  --color-cinnapink-950: #25161a;
}

SCSS

$cinnapink: #976a74;
$cinnapink-rgb: 151, 106, 116;
$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);
}