#8650CA

CSS

:root {
  --purple-rain: #8650ca;
  --purple-rain-rgb: 134 80 202;
  --purple-rain-oklch: oklch(0.552 0.183 301);
}

.element {
  color: var(--purple-rain);
  background-color: hsl(267 54% 55%);
  border-color: oklch(0.552 0.183 301);
}

Tailwind CSS v4

@theme {
  --color-purple-rain: #8650ca;
  --color-purple-rain-50: #ffe9ff;
  --color-purple-rain-100: #f4daff;
  --color-purple-rain-200: #e4c1ff;
  --color-purple-rain-300: #ca9fff;
  --color-purple-rain-400: #b281f8;
  --color-purple-rain-500: #9c60ea;
  --color-purple-rain-600: #8452c5;
  --color-purple-rain-700: #6a419e;
  --color-purple-rain-800: #4c2f78;
  --color-purple-rain-900: #352054;
  --color-purple-rain-950: #200f39;
}

SCSS

$purple-rain: #8650ca;
$purple-rain-rgb: 134, 80, 202;
$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);
}