#866A94

CSS

:root {
  --sunshone-plum: #866a94;
  --sunshone-plum-rgb: 134 106 148;
  --sunshone-plum-oklch: oklch(0.567 0.071 314.2);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(280 17% 50%);
  border-color: oklch(0.567 0.071 314.2);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #866a94;
  --color-sunshone-plum-50: #fdefff;
  --color-sunshone-plum-100: #f2e1f8;
  --color-sunshone-plum-200: #e1cbe9;
  --color-sunshone-plum-300: #c6add0;
  --color-sunshone-plum-400: #ae92bc;
  --color-sunshone-plum-500: #9878a7;
  --color-sunshone-plum-600: #80668d;
  --color-sunshone-plum-700: #675171;
  --color-sunshone-plum-800: #4b3b54;
  --color-sunshone-plum-900: #34293b;
  --color-sunshone-plum-950: #1f1625;
}

SCSS

$sunshone-plum: #866a94;
$sunshone-plum-rgb: 134, 106, 148;
$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);
}