#2B5FF2

CSS

:root {
  --secret-of-mana: #2b5ff2;
  --secret-of-mana-rgb: 43 95 242;
  --secret-of-mana-oklch: oklch(0.546 0.227 264.7);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(224 88% 56%);
  border-color: oklch(0.546 0.227 264.7);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #2b5ff2;
  --color-secret-of-mana-50: #d8f4ff;
  --color-secret-of-mana-100: #c5e6ff;
  --color-secret-of-mana-200: #a8d1ff;
  --color-secret-of-mana-300: #82b0ff;
  --color-secret-of-mana-400: #5a94ff;
  --color-secret-of-mana-500: #3773ff;
  --color-secret-of-mana-600: #3062ed;
  --color-secret-of-mana-700: #264fbf;
  --color-secret-of-mana-800: #133a8f;
  --color-secret-of-mana-900: #0b2866;
  --color-secret-of-mana-950: #021546;
}

SCSS

$secret-of-mana: #2b5ff2;
$secret-of-mana-rgb: 43, 95, 242;
$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);
}