#A76066

CSS

:root {
  --cinnapink: #a76066;
  --cinnapink-rgb: 167 96 102;
  --cinnapink-oklch: oklch(0.571 0.092 15);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(355 29% 52%);
  border-color: oklch(0.571 0.092 15);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a76066;
  --color-cinnapink-50: #ffebec;
  --color-cinnapink-100: #ffdcdd;
  --color-cinnapink-200: #f9c5c6;
  --color-cinnapink-300: #e3a5a6;
  --color-cinnapink-400: #cf888d;
  --color-cinnapink-500: #bb6b72;
  --color-cinnapink-600: #9e5b61;
  --color-cinnapink-700: #7f494d;
  --color-cinnapink-800: #5e3439;
  --color-cinnapink-900: #422427;
  --color-cinnapink-950: #2a1215;
}

SCSS

$cinnapink: #a76066;
$cinnapink-rgb: 167, 96, 102;
$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);
}