#956792

CSS

:root {
  --sunshone-plum: #956792;
  --sunshone-plum-rgb: 149 103 146;
  --sunshone-plum-oklch: oklch(0.577 0.084 328.8);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(304 18% 49%);
  border-color: oklch(0.577 0.084 328.8);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #956792;
  --color-sunshone-plum-50: #ffedff;
  --color-sunshone-plum-100: #f9def5;
  --color-sunshone-plum-200: #eac8e5;
  --color-sunshone-plum-300: #d1a8cc;
  --color-sunshone-plum-400: #bb8db7;
  --color-sunshone-plum-500: #a572a2;
  --color-sunshone-plum-600: #8c6089;
  --color-sunshone-plum-700: #704d6e;
  --color-sunshone-plum-800: #523852;
  --color-sunshone-plum-900: #392639;
  --color-sunshone-plum-950: #231423;
}

SCSS

$sunshone-plum: #956792;
$sunshone-plum-rgb: 149, 103, 146;
$sunshone-plum-light: mix(#fff, $sunshone-plum, 20%);
$sunshone-plum-dark: mix(#000, $sunshone-plum, 20%);

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