#866C8B

CSS

:root {
  --sunshone-plum: #866c8b;
  --sunshone-plum-rgb: 134 108 139;
  --sunshone-plum-oklch: oklch(0.567 0.056 320.9);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(290 13% 48%);
  border-color: oklch(0.567 0.056 320.9);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #866c8b;
  --color-sunshone-plum-50: #fdf0ff;
  --color-sunshone-plum-100: #f1e2f3;
  --color-sunshone-plum-200: #e0cde2;
  --color-sunshone-plum-300: #c6aec8;
  --color-sunshone-plum-400: #ae94b3;
  --color-sunshone-plum-500: #977a9d;
  --color-sunshone-plum-600: #806885;
  --color-sunshone-plum-700: #67536a;
  --color-sunshone-plum-800: #4b3c4f;
  --color-sunshone-plum-900: #342937;
  --color-sunshone-plum-950: #1f1722;
}

SCSS

$sunshone-plum: #866c8b;
$sunshone-plum-rgb: 134, 108, 139;
$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);
}