#5764F4

CSS

:root {
  --secret-of-mana: #5764f4;
  --secret-of-mana-rgb: 87 100 244;
  --secret-of-mana-oklch: oklch(0.577 0.213 273.7);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(235 88% 65%);
  border-color: oklch(0.577 0.213 273.7);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #5764f4;
  --color-secret-of-mana-50: #e4f1ff;
  --color-secret-of-mana-100: #d4e2ff;
  --color-secret-of-mana-200: #bbccff;
  --color-secret-of-mana-300: #9aabff;
  --color-secret-of-mana-400: #7a8eff;
  --color-secret-of-mana-500: #606eff;
  --color-secret-of-mana-600: #515ee5;
  --color-secret-of-mana-700: #414bb8;
  --color-secret-of-mana-800: #2b378a;
  --color-secret-of-mana-900: #1d2662;
  --color-secret-of-mana-950: #0e1344;
}

SCSS

$secret-of-mana: #5764f4;
$secret-of-mana-rgb: 87, 100, 244;
$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);
}