#2A5EF5

CSS

:root {
  --secret-of-mana: #2a5ef5;
  --secret-of-mana-rgb: 42 94 245;
  --secret-of-mana-oklch: oklch(0.547 0.232 264.8);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(225 91% 56%);
  border-color: oklch(0.547 0.232 264.8);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #2a5ef5;
  --color-secret-of-mana-50: #d7f4ff;
  --color-secret-of-mana-100: #c5e6ff;
  --color-secret-of-mana-200: #a7d0ff;
  --color-secret-of-mana-300: #81b0ff;
  --color-secret-of-mana-400: #5893ff;
  --color-secret-of-mana-500: #3672ff;
  --color-secret-of-mana-600: #2f61f0;
  --color-secret-of-mana-700: #254ec1;
  --color-secret-of-mana-800: #123a91;
  --color-secret-of-mana-900: #0b2867;
  --color-secret-of-mana-950: #021447;
}

SCSS

$secret-of-mana: #2a5ef5;
$secret-of-mana-rgb: 42, 94, 245;
$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);
}