#2C0631

CSS

:root {
  --dark-purple: #2c0631;
  --dark-purple-rgb: 44 6 49;
  --dark-purple-oklch: oklch(0.219 0.088 322.8);
}

.element {
  color: var(--dark-purple);
  background-color: hsl(293 78% 11%);
  border-color: oklch(0.219 0.088 322.8);
}

Tailwind CSS v4

@theme {
  --color-dark-purple: #2c0631;
  --color-dark-purple-50: #ffedff;
  --color-dark-purple-100: #f8def8;
  --color-dark-purple-200: #e8c8e9;
  --color-dark-purple-300: #cfa8d1;
  --color-dark-purple-400: #b88dbd;
  --color-dark-purple-500: #a272a8;
  --color-dark-purple-600: #89618e;
  --color-dark-purple-700: #6e4d72;
  --color-dark-purple-800: #503855;
  --color-dark-purple-900: #38263b;
  --color-dark-purple-950: #221525;
}

SCSS

$dark-purple: #2c0631;
$dark-purple-rgb: 44, 6, 49;
$dark-purple-light: mix(#fff, $dark-purple, 20%);
$dark-purple-dark: mix(#000, $dark-purple, 20%);

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