#A66278

CSS

:root {
  --cinnapink: #a66278;
  --cinnapink-rgb: 166 98 120;
  --cinnapink-oklch: oklch(0.579 0.092 359.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(341 28% 52%);
  border-color: oklch(0.579 0.092 359.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a66278;
  --color-cinnapink-50: #ffebf3;
  --color-cinnapink-100: #ffdce6;
  --color-cinnapink-200: #f7c5d1;
  --color-cinnapink-300: #e0a4b4;
  --color-cinnapink-400: #cc889d;
  --color-cinnapink-500: #b76b84;
  --color-cinnapink-600: #9b5b70;
  --color-cinnapink-700: #7c4959;
  --color-cinnapink-800: #5c3442;
  --color-cinnapink-900: #40242e;
  --color-cinnapink-950: #29121b;
}

SCSS

$cinnapink: #a66278;
$cinnapink-rgb: 166, 98, 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);
}