#884FC8

CSS

:root {
  --purple-rain: #884fc8;
  --purple-rain-rgb: 136 79 200;
  --purple-rain-oklch: oklch(0.552 0.182 302.5);
}

.element {
  color: var(--purple-rain);
  background-color: hsl(268 52% 55%);
  border-color: oklch(0.552 0.182 302.5);
}

Tailwind CSS v4

@theme {
  --color-purple-rain: #884fc8;
  --color-purple-rain-50: #ffe9ff;
  --color-purple-rain-100: #f5d9ff;
  --color-purple-rain-200: #e6c1ff;
  --color-purple-rain-300: #cc9eff;
  --color-purple-rain-400: #b480f6;
  --color-purple-rain-500: #9f5fe8;
  --color-purple-rain-600: #8651c3;
  --color-purple-rain-700: #6c419d;
  --color-purple-rain-800: #4e2f77;
  --color-purple-rain-900: #362054;
  --color-purple-rain-950: #210f38;
}

SCSS

$purple-rain: #884fc8;
$purple-rain-rgb: 136, 79, 200;
$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);
}