#824FD4

CSS

:root {
  --purple-rain: #824fd4;
  --purple-rain-rgb: 130 79 212;
  --purple-rain-oklch: oklch(0.554 0.195 297.2);
}

.element {
  color: var(--purple-rain);
  background-color: hsl(263 61% 57%);
  border-color: oklch(0.554 0.195 297.2);
}

Tailwind CSS v4

@theme {
  --color-purple-rain: #824fd4;
  --color-purple-rain-50: #fde9ff;
  --color-purple-rain-100: #f1daff;
  --color-purple-rain-200: #e0c1ff;
  --color-purple-rain-300: #c69fff;
  --color-purple-rain-400: #ad80ff;
  --color-purple-rain-500: #975ef4;
  --color-purple-rain-600: #8051ce;
  --color-purple-rain-700: #6641a6;
  --color-purple-rain-800: #492f7d;
  --color-purple-rain-900: #332058;
  --color-purple-rain-950: #1f0e3c;
}

SCSS

$purple-rain: #824fd4;
$purple-rain-rgb: 130, 79, 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);
}