#365EEF

CSS

:root {
  --secret-of-mana: #365eef;
  --secret-of-mana-rgb: 54 94 239;
  --secret-of-mana-oklch: oklch(0.546 0.222 266.7);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(227 85% 57%);
  border-color: oklch(0.546 0.222 266.7);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #365eef;
  --color-secret-of-mana-50: #dbf3ff;
  --color-secret-of-mana-100: #c9e5ff;
  --color-secret-of-mana-200: #add0ff;
  --color-secret-of-mana-300: #89afff;
  --color-secret-of-mana-400: #6393ff;
  --color-secret-of-mana-500: #4472ff;
  --color-secret-of-mana-600: #3a62ea;
  --color-secret-of-mana-700: #2e4ebd;
  --color-secret-of-mana-800: #1a3a8e;
  --color-secret-of-mana-900: #112864;
  --color-secret-of-mana-950: #051445;
}

SCSS

$secret-of-mana: #365eef;
$secret-of-mana-rgb: 54, 94, 239;
$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);
}