#8A6993

CSS

:root {
  --sunshone-plum: #8a6993;
  --sunshone-plum-rgb: 138 105 147;
  --sunshone-plum-oklch: oklch(0.569 0.074 318.9);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(287 17% 49%);
  border-color: oklch(0.569 0.074 318.9);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #8a6993;
  --color-sunshone-plum-50: #ffefff;
  --color-sunshone-plum-100: #f4e0f7;
  --color-sunshone-plum-200: #e3cae8;
  --color-sunshone-plum-300: #c9accf;
  --color-sunshone-plum-400: #b291bb;
  --color-sunshone-plum-500: #9b76a6;
  --color-sunshone-plum-600: #83648c;
  --color-sunshone-plum-700: #695070;
  --color-sunshone-plum-800: #4d3a53;
  --color-sunshone-plum-900: #35283a;
  --color-sunshone-plum-950: #201624;
}

SCSS

$sunshone-plum: #8a6993;
$sunshone-plum-rgb: 138, 105, 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);
}