#A36669

CSS

:root {
  --cinnapink: #a36669;
  --cinnapink-rgb: 163 102 105;
  --cinnapink-oklch: oklch(0.577 0.079 16.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(357 25% 52%);
  border-color: oklch(0.577 0.079 16.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a36669;
  --color-cinnapink-50: #ffedec;
  --color-cinnapink-100: #ffdede;
  --color-cinnapink-200: #f4c7c7;
  --color-cinnapink-300: #dda8a8;
  --color-cinnapink-400: #c98c8e;
  --color-cinnapink-500: #b47074;
  --color-cinnapink-600: #985f62;
  --color-cinnapink-700: #7a4c4e;
  --color-cinnapink-800: #5b373a;
  --color-cinnapink-900: #3f2527;
  --color-cinnapink-950: #281416;
}

SCSS

$cinnapink: #a36669;
$cinnapink-rgb: 163, 102, 105;
$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);
}