#A55F78

CSS

:root {
  --cinnapink: #a55f78;
  --cinnapink-rgb: 165 95 120;
  --cinnapink-oklch: oklch(0.572 0.096 357.7);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(339 28% 51%);
  border-color: oklch(0.572 0.096 357.7);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a55f78;
  --color-cinnapink-50: #ffeaf4;
  --color-cinnapink-100: #ffdbe7;
  --color-cinnapink-200: #f8c4d3;
  --color-cinnapink-300: #e1a3b6;
  --color-cinnapink-400: #cd869e;
  --color-cinnapink-500: #b96a86;
  --color-cinnapink-600: #9c5a72;
  --color-cinnapink-700: #7d485b;
  --color-cinnapink-800: #5c3444;
  --color-cinnapink-900: #41232f;
  --color-cinnapink-950: #29121b;
}

SCSS

$cinnapink: #a55f78;
$cinnapink-rgb: 165, 95, 120;
$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);
}