#A74B87

CSS

:root {
  --plum-passion: #a74b87;
  --plum-passion-rgb: 167 75 135;
  --plum-passion-oklch: oklch(0.55 0.141 342.8);
}

.element {
  color: var(--plum-passion);
  background-color: hsl(321 38% 47%);
  border-color: oklch(0.55 0.141 342.8);
}

Tailwind CSS v4

@theme {
  --color-plum-passion: #a74b87;
  --color-plum-passion-50: #ffe6ff;
  --color-plum-passion-100: #ffd6f3;
  --color-plum-passion-200: #ffbce2;
  --color-plum-passion-300: #eb9ac8;
  --color-plum-passion-400: #d77bb4;
  --color-plum-passion-500: #c35b9f;
  --color-plum-passion-600: #a54e86;
  --color-plum-passion-700: #843e6b;
  --color-plum-passion-800: #622c51;
  --color-plum-passion-900: #451e38;
  --color-plum-passion-950: #2c0d23;
}

SCSS

$plum-passion: #a74b87;
$plum-passion-rgb: 167, 75, 135;
$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);
}