#A54783

CSS

:root {
  --plum-passion: #a54783;
  --plum-passion-rgb: 165 71 131;
  --plum-passion-oklch: oklch(0.54 0.143 343.8);
}

.element {
  color: var(--plum-passion);
  background-color: hsl(322 40% 46%);
  border-color: oklch(0.54 0.143 343.8);
}

Tailwind CSS v4

@theme {
  --color-plum-passion: #a54783;
  --color-plum-passion-50: #ffe5fe;
  --color-plum-passion-100: #ffd5f2;
  --color-plum-passion-200: #ffbce1;
  --color-plum-passion-300: #ec99c7;
  --color-plum-passion-400: #d87ab3;
  --color-plum-passion-500: #c55a9d;
  --color-plum-passion-600: #a64d85;
  --color-plum-passion-700: #853d6b;
  --color-plum-passion-800: #622c50;
  --color-plum-passion-900: #451e38;
  --color-plum-passion-950: #2c0d22;
}

SCSS

$plum-passion: #a54783;
$plum-passion-rgb: 165, 71, 131;
$plum-passion-light: mix(#fff, $plum-passion, 20%);
$plum-passion-dark: mix(#000, $plum-passion, 20%);

.element {
  color: $plum-passion;
  box-shadow: 0 0 0 2px rgba($plum-passion, 0.35);
}