#91678E

CSS

:root {
  --sunshone-plum: #91678e;
  --sunshone-plum-rgb: 145 103 142;
  --sunshone-plum-oklch: oklch(0.57 0.077 329);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(304 17% 49%);
  border-color: oklch(0.57 0.077 329);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #91678e;
  --color-sunshone-plum-50: #ffeeff;
  --color-sunshone-plum-100: #f8dff4;
  --color-sunshone-plum-200: #e8c9e4;
  --color-sunshone-plum-300: #cfaaca;
  --color-sunshone-plum-400: #b88eb5;
  --color-sunshone-plum-500: #a3749f;
  --color-sunshone-plum-600: #8a6287;
  --color-sunshone-plum-700: #6e4e6c;
  --color-sunshone-plum-800: #513950;
  --color-sunshone-plum-900: #382738;
  --color-sunshone-plum-950: #231523;
}

SCSS

$sunshone-plum: #91678e;
$sunshone-plum-rgb: 145, 103, 142;
$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);
}