#9B6971

CSS

:root {
  --cinnapink: #9b6971;
  --cinnapink-rgb: 155 105 113;
  --cinnapink-oklch: oklch(0.576 0.065 8.8);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(350 20% 51%);
  border-color: oklch(0.576 0.065 8.8);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9b6971;
  --color-cinnapink-50: #ffeef0;
  --color-cinnapink-100: #fde0e2;
  --color-cinnapink-200: #efc9cd;
  --color-cinnapink-300: #d6aaaf;
  --color-cinnapink-400: #c18f96;
  --color-cinnapink-500: #ac747d;
  --color-cinnapink-600: #92636a;
  --color-cinnapink-700: #754f55;
  --color-cinnapink-800: #56393e;
  --color-cinnapink-900: #3c272b;
  --color-cinnapink-950: #261518;
}

SCSS

$cinnapink: #9b6971;
$cinnapink-rgb: 155, 105, 113;
$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);
}