#7E65C3

CSS

:root {
  --lavish-spending: #7e65c3;
  --lavish-spending-rgb: 126 101 195;
  --lavish-spending-oklch: oklch(0.574 0.141 293.7);
}

.element {
  color: var(--lavish-spending);
  background-color: hsl(256 44% 58%);
  border-color: oklch(0.574 0.141 293.7);
}

Tailwind CSS v4

@theme {
  --color-lavish-spending: #7e65c3;
  --color-lavish-spending-50: #f8eeff;
  --color-lavish-spending-100: #ebdfff;
  --color-lavish-spending-200: #d9c8ff;
  --color-lavish-spending-300: #bda8f8;
  --color-lavish-spending-400: #a38de9;
  --color-lavish-spending-500: #8c70da;
  --color-lavish-spending-600: #775fb8;
  --color-lavish-spending-700: #5f4c93;
  --color-lavish-spending-800: #44386f;
  --color-lavish-spending-900: #2f264e;
  --color-lavish-spending-950: #1c1434;
}

SCSS

$lavish-spending: #7e65c3;
$lavish-spending-rgb: 126, 101, 195;
$lavish-spending-light: mix(#fff, $lavish-spending, 20%);
$lavish-spending-dark: mix(#000, $lavish-spending, 20%);

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