#874CD4

CSS

:root {
  --purple-rain: #874cd4;
  --purple-rain-rgb: 135 76 212;
  --purple-rain-oklch: oklch(0.555 0.2 299.8);
}

.element {
  color: var(--purple-rain);
  background-color: hsl(266 61% 56%);
  border-color: oklch(0.555 0.2 299.8);
}

Tailwind CSS v4

@theme {
  --color-purple-rain: #874cd4;
  --color-purple-rain-50: #ffe8ff;
  --color-purple-rain-100: #f4d9ff;
  --color-purple-rain-200: #e4c0ff;
  --color-purple-rain-300: #ca9dff;
  --color-purple-rain-400: #b27dff;
  --color-purple-rain-500: #9d5bf4;
  --color-purple-rain-600: #844ece;
  --color-purple-rain-700: #6a3ea5;
  --color-purple-rain-800: #4c2d7d;
  --color-purple-rain-900: #351f58;
  --color-purple-rain-950: #200d3c;
}

SCSS

$purple-rain: #874cd4;
$purple-rain-rgb: 135, 76, 212;
$purple-rain-light: mix(#fff, $purple-rain, 20%);
$purple-rain-dark: mix(#000, $purple-rain, 20%);

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