#8C6893

CSS

:root {
  --sunshone-plum: #8c6893;
  --sunshone-plum-rgb: 140 104 147;
  --sunshone-plum-oklch: oklch(0.569 0.077 320.9);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(290 17% 49%);
  border-color: oklch(0.569 0.077 320.9);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #8c6893;
  --color-sunshone-plum-50: #ffeeff;
  --color-sunshone-plum-100: #f5e0f7;
  --color-sunshone-plum-200: #e5cae8;
  --color-sunshone-plum-300: #cbabcf;
  --color-sunshone-plum-400: #b490bb;
  --color-sunshone-plum-500: #9e75a6;
  --color-sunshone-plum-600: #85638c;
  --color-sunshone-plum-700: #6b4f70;
  --color-sunshone-plum-800: #4e3a53;
  --color-sunshone-plum-900: #36283a;
  --color-sunshone-plum-950: #211624;
}

SCSS

$sunshone-plum: #8c6893;
$sunshone-plum-rgb: 140, 104, 147;
$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);
}