#AE9AD6

CSS

:root {
  --violet-velvet: #ae9ad6;
  --violet-velvet-rgb: 174 154 214;
  --violet-velvet-oklch: oklch(0.725 0.088 299.5);
}

.element {
  color: var(--violet-velvet);
  background-color: hsl(260 42% 72%);
  border-color: oklch(0.725 0.088 299.5);
}

Tailwind CSS v4

@theme {
  --color-violet-velvet: #ae9ad6;
  --color-violet-velvet-50: #f9f0ff;
  --color-violet-velvet-100: #ede2ff;
  --color-violet-velvet-200: #dbccf5;
  --color-violet-velvet-300: #bfadde;
  --color-violet-velvet-400: #a693cb;
  --color-violet-velvet-500: #8f79b8;
  --color-violet-velvet-600: #79669c;
  --color-violet-velvet-700: #61527d;
  --color-violet-velvet-800: #463c5d;
  --color-violet-velvet-900: #302941;
  --color-violet-velvet-950: #1d172a;
}

SCSS

$violet-velvet: #ae9ad6;
$violet-velvet-rgb: 174, 154, 214;
$violet-velvet-light: mix(#fff, $violet-velvet, 20%);
$violet-velvet-dark: mix(#000, $violet-velvet, 20%);

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