#7E6384

CSS

:root {
  --sunshone-plum: #7e6384;
  --sunshone-plum-rgb: 126 99 132;
  --sunshone-plum-oklch: oklch(0.538 0.06 320.1);
}

.element {
  color: var(--sunshone-plum);
  background-color: hsl(289 14% 45%);
  border-color: oklch(0.538 0.06 320.1);
}

Tailwind CSS v4

@theme {
  --color-sunshone-plum: #7e6384;
  --color-sunshone-plum-50: #fef0ff;
  --color-sunshone-plum-100: #f2e2f4;
  --color-sunshone-plum-200: #e1cce4;
  --color-sunshone-plum-300: #c6aeca;
  --color-sunshone-plum-400: #af93b5;
  --color-sunshone-plum-500: #98799f;
  --color-sunshone-plum-600: #816786;
  --color-sunshone-plum-700: #67526c;
  --color-sunshone-plum-800: #4b3c50;
  --color-sunshone-plum-900: #342938;
  --color-sunshone-plum-950: #201722;
}

SCSS

$sunshone-plum: #7e6384;
$sunshone-plum-rgb: 126, 99, 132;
$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);
}