#5B427C

CSS

:root {
  --in-the-vines: #5b427c;
  --in-the-vines-rgb: 91 66 124;
  --in-the-vines-oklch: oklch(0.433 0.096 302.4);
}

.element {
  color: var(--in-the-vines);
  background-color: hsl(266 31% 37%);
  border-color: oklch(0.433 0.096 302.4);
}

Tailwind CSS v4

@theme {
  --color-in-the-vines: #5b427c;
  --color-in-the-vines-50: #fbefff;
  --color-in-the-vines-100: #efe0ff;
  --color-in-the-vines-200: #ddcbf6;
  --color-in-the-vines-300: #c2ace0;
  --color-in-the-vines-400: #a991ce;
  --color-in-the-vines-500: #9376bb;
  --color-in-the-vines-600: #7c649e;
  --color-in-the-vines-700: #63507f;
  --color-in-the-vines-800: #483a5f;
  --color-in-the-vines-900: #322842;
  --color-in-the-vines-950: #1e162b;
}

SCSS

$in-the-vines: #5b427c;
$in-the-vines-rgb: 91, 66, 124;
$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);
}