#2E0530

CSS

:root {
  --dark-purple: #2e0530;
  --dark-purple-rgb: 46 5 48;
  --dark-purple-oklch: oklch(0.22 0.089 326.1);
}

.element {
  color: var(--dark-purple);
  background-color: hsl(297 81% 10%);
  border-color: oklch(0.22 0.089 326.1);
}

Tailwind CSS v4

@theme {
  --color-dark-purple: #2e0530;
  --color-dark-purple-50: #ffedff;
  --color-dark-purple-100: #f9def7;
  --color-dark-purple-200: #eac7e8;
  --color-dark-purple-300: #d1a8cf;
  --color-dark-purple-400: #ba8cbb;
  --color-dark-purple-500: #a571a6;
  --color-dark-purple-600: #8b608c;
  --color-dark-purple-700: #704c70;
  --color-dark-purple-800: #523754;
  --color-dark-purple-900: #39263a;
  --color-dark-purple-950: #231425;
}

SCSS

$dark-purple: #2e0530;
$dark-purple-rgb: 46, 5, 48;
$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);
}