#5966F6

CSS

:root {
  --secret-of-mana: #5966f6;
  --secret-of-mana-rgb: 89 102 246;
  --secret-of-mana-oklch: oklch(0.583 0.213 273.8);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(235 90% 66%);
  border-color: oklch(0.583 0.213 273.8);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #5966f6;
  --color-secret-of-mana-50: #e4f1ff;
  --color-secret-of-mana-100: #d4e2ff;
  --color-secret-of-mana-200: #bbccff;
  --color-secret-of-mana-300: #9babff;
  --color-secret-of-mana-400: #7a8eff;
  --color-secret-of-mana-500: #616eff;
  --color-secret-of-mana-600: #525ee5;
  --color-secret-of-mana-700: #414bb8;
  --color-secret-of-mana-800: #2b378a;
  --color-secret-of-mana-900: #1d2662;
  --color-secret-of-mana-950: #0e1343;
}

SCSS

$secret-of-mana: #5966f6;
$secret-of-mana-rgb: 89, 102, 246;
$secret-of-mana-light: mix(#fff, $secret-of-mana, 20%);
$secret-of-mana-dark: mix(#000, $secret-of-mana, 20%);

.element {
  color: $secret-of-mana;
  box-shadow: 0 0 0 2px rgba($secret-of-mana, 0.35);
}