#564579

CSS

:root {
  --in-the-vines: #564579;
  --in-the-vines-rgb: 86 69 121;
  --in-the-vines-oklch: oklch(0.432 0.086 297.8);
}

.element {
  color: var(--in-the-vines);
  background-color: hsl(260 27% 37%);
  border-color: oklch(0.432 0.086 297.8);
}

Tailwind CSS v4

@theme {
  --color-in-the-vines: #564579;
  --color-in-the-vines-50: #f8f0ff;
  --color-in-the-vines-100: #ece2ff;
  --color-in-the-vines-200: #d9cdf4;
  --color-in-the-vines-300: #beaedd;
  --color-in-the-vines-400: #a494cb;
  --color-in-the-vines-500: #8d7ab8;
  --color-in-the-vines-600: #77679b;
  --color-in-the-vines-700: #5f527d;
  --color-in-the-vines-800: #453c5d;
  --color-in-the-vines-900: #302941;
  --color-in-the-vines-950: #1c172a;
}

SCSS

$in-the-vines: #564579;
$in-the-vines-rgb: 86, 69, 121;
$in-the-vines-light: mix(#fff, $in-the-vines, 20%);
$in-the-vines-dark: mix(#000, $in-the-vines, 20%);

.element {
  color: $in-the-vines;
  box-shadow: 0 0 0 2px rgba($in-the-vines, 0.35);
}