#BF32D6

CSS

:root {
  --trippy-velvet: #bf32d6;
  --trippy-velvet-rgb: 191 50 214;
  --trippy-velvet-oklch: oklch(0.6 0.249 321.5);
}

.element {
  color: var(--trippy-velvet);
  background-color: hsl(292 67% 52%);
  border-color: oklch(0.6 0.249 321.5);
}

Tailwind CSS v4

@theme {
  --color-trippy-velvet: #bf32d6;
  --color-trippy-velvet-50: #ffddff;
  --color-trippy-velvet-100: #ffccff;
  --color-trippy-velvet-200: #ffaeff;
  --color-trippy-velvet-300: #f385ff;
  --color-trippy-velvet-400: #de5ef4;
  --color-trippy-velvet-500: #cb27e5;
  --color-trippy-velvet-600: #ac25c1;
  --color-trippy-velvet-700: #8a1e9b;
  --color-trippy-velvet-800: #651576;
  --color-trippy-velvet-900: #470e54;
  --color-trippy-velvet-950: #2e0038;
}

SCSS

$trippy-velvet: #bf32d6;
$trippy-velvet-rgb: 191, 50, 214;
$trippy-velvet-light: mix(#fff, $trippy-velvet, 20%);
$trippy-velvet-dark: mix(#000, $trippy-velvet, 20%);

.element {
  color: $trippy-velvet;
  box-shadow: 0 0 0 2px rgba($trippy-velvet, 0.35);
}