#8E5C83

CSS

:root {
  --plum-highness: #8e5c83;
  --plum-highness-rgb: 142 92 131;
  --plum-highness-oklch: oklch(0.542 0.085 335);
}

.element {
  color: var(--plum-highness);
  background-color: hsl(313 21% 46%);
  border-color: oklch(0.542 0.085 335);
}

Tailwind CSS v4

@theme {
  --color-plum-highness: #8e5c83;
  --color-plum-highness-50: #ffecfe;
  --color-plum-highness-100: #fcdef2;
  --color-plum-highness-200: #edc7e2;
  --color-plum-highness-300: #d4a7c7;
  --color-plum-highness-400: #be8cb2;
  --color-plum-highness-500: #a9709d;
  --color-plum-highness-600: #8f5f84;
  --color-plum-highness-700: #734c6a;
  --color-plum-highness-800: #54374f;
  --color-plum-highness-900: #3b2637;
  --color-plum-highness-950: #251422;
}

SCSS

$plum-highness: #8e5c83;
$plum-highness-rgb: 142, 92, 131;
$plum-highness-light: mix(#fff, $plum-highness, 20%);
$plum-highness-dark: mix(#000, $plum-highness, 20%);

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