#68006B

CSS

:root {
  --cloak-and-dagger: #68006b;
  --cloak-and-dagger-rgb: 104 0 107;
  --cloak-and-dagger-oklch: oklch(0.365 0.169 326.9);
}

.element {
  color: var(--cloak-and-dagger);
  background-color: hsl(298 100% 21%);
  border-color: oklch(0.365 0.169 326.9);
}

Tailwind CSS v4

@theme {
  --color-cloak-and-dagger: #68006b;
  --color-cloak-and-dagger-50: #ffe5ff;
  --color-cloak-and-dagger-100: #ffd4ff;
  --color-cloak-and-dagger-200: #fdbaf8;
  --color-cloak-and-dagger-300: #e797e2;
  --color-cloak-and-dagger-400: #d177d2;
  --color-cloak-and-dagger-500: #be55bf;
  --color-cloak-and-dagger-600: #a049a2;
  --color-cloak-and-dagger-700: #813a82;
  --color-cloak-and-dagger-800: #5e2a62;
  --color-cloak-and-dagger-900: #421c45;
  --color-cloak-and-dagger-950: #2a0c2c;
}

SCSS

$cloak-and-dagger: #68006b;
$cloak-and-dagger-rgb: 104, 0, 107;
$cloak-and-dagger-light: mix(#fff, $cloak-and-dagger, 20%);
$cloak-and-dagger-dark: mix(#000, $cloak-and-dagger, 20%);

.element {
  color: $cloak-and-dagger;
  box-shadow: 0 0 0 2px rgba($cloak-and-dagger, 0.35);
}