#A46173

CSS

:root {
  --cinnapink: #a46173;
  --cinnapink-rgb: 164 97 115;
  --cinnapink-oklch: oklch(0.573 0.089 3);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(344 27% 51%);
  border-color: oklch(0.573 0.089 3);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a46173;
  --color-cinnapink-50: #ffebf2;
  --color-cinnapink-100: #ffdce4;
  --color-cinnapink-200: #f7c5cf;
  --color-cinnapink-300: #e0a5b1;
  --color-cinnapink-400: #cb8899;
  --color-cinnapink-500: #b76c80;
  --color-cinnapink-600: #9b5c6d;
  --color-cinnapink-700: #7c4957;
  --color-cinnapink-800: #5c3540;
  --color-cinnapink-900: #40242c;
  --color-cinnapink-950: #291319;
}

SCSS

$cinnapink: #a46173;
$cinnapink-rgb: 164, 97, 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);
}