#8152CB

CSS

:root {
  --purple-rain: #8152cb;
  --purple-rain-rgb: 129 82 203;
  --purple-rain-oklch: oklch(0.551 0.18 298.1);
}

.element {
  color: var(--purple-rain);
  background-color: hsl(263 54% 56%);
  border-color: oklch(0.551 0.18 298.1);
}

Tailwind CSS v4

@theme {
  --color-purple-rain: #8152cb;
  --color-purple-rain-50: #fdeaff;
  --color-purple-rain-100: #f1dbff;
  --color-purple-rain-200: #e0c3ff;
  --color-purple-rain-300: #c6a1ff;
  --color-purple-rain-400: #ad83f9;
  --color-purple-rain-500: #9763eb;
  --color-purple-rain-600: #8054c6;
  --color-purple-rain-700: #6643a0;
  --color-purple-rain-800: #493178;
  --color-purple-rain-900: #332155;
  --color-purple-rain-950: #1f1039;
}

SCSS

$purple-rain: #8152cb;
$purple-rain-rgb: 129, 82, 203;
$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);
}