#8161CD

CSS

:root {
  --lavish-spending: #8161cd;
  --lavish-spending-rgb: 129 97 205;
  --lavish-spending-oklch: oklch(0.576 0.161 294.5);
}

.element {
  color: var(--lavish-spending);
  background-color: hsl(258 52% 59%);
  border-color: oklch(0.576 0.161 294.5);
}

Tailwind CSS v4

@theme {
  --color-lavish-spending: #8161cd;
  --color-lavish-spending-50: #f9ecff;
  --color-lavish-spending-100: #ecdeff;
  --color-lavish-spending-200: #dac6ff;
  --color-lavish-spending-300: #bfa5ff;
  --color-lavish-spending-400: #a589f3;
  --color-lavish-spending-500: #8f6be4;
  --color-lavish-spending-600: #795bc0;
  --color-lavish-spending-700: #61499b;
  --color-lavish-spending-800: #453574;
  --color-lavish-spending-900: #302452;
  --color-lavish-spending-950: #1c1237;
}

SCSS

$lavish-spending: #8161cd;
$lavish-spending-rgb: 129, 97, 205;
$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);
}