#A56375

CSS

:root {
  --cinnapink: #a56375;
  --cinnapink-rgb: 165 99 117;
  --cinnapink-oklch: oklch(0.578 0.088 2.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(344 27% 52%);
  border-color: oklch(0.578 0.088 2.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a56375;
  --color-cinnapink-50: #ffebf2;
  --color-cinnapink-100: #ffdce4;
  --color-cinnapink-200: #f6c5cf;
  --color-cinnapink-300: #dfa5b2;
  --color-cinnapink-400: #cb899a;
  --color-cinnapink-500: #b66d81;
  --color-cinnapink-600: #9a5c6d;
  --color-cinnapink-700: #7c4a57;
  --color-cinnapink-800: #5b3541;
  --color-cinnapink-900: #40242d;
  --color-cinnapink-950: #29131a;
}

SCSS

$cinnapink: #a56375;
$cinnapink-rgb: 165, 99, 117;
$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);
}