#5A6AE8

CSS

:root {
  --secret-of-mana: #5a6ae8;
  --secret-of-mana-rgb: 90 106 232;
  --secret-of-mana-oklch: oklch(0.58 0.189 273.5);
}

.element {
  color: var(--secret-of-mana);
  background-color: hsl(233 76% 63%);
  border-color: oklch(0.58 0.189 273.5);
}

Tailwind CSS v4

@theme {
  --color-secret-of-mana: #5a6ae8;
  --color-secret-of-mana-50: #e5f2ff;
  --color-secret-of-mana-100: #d6e3ff;
  --color-secret-of-mana-200: #bdcdff;
  --color-secret-of-mana-300: #9dadff;
  --color-secret-of-mana-400: #7c92ff;
  --color-secret-of-mana-500: #6273ff;
  --color-secret-of-mana-600: #5362d8;
  --color-secret-of-mana-700: #424fae;
  --color-secret-of-mana-800: #2c3a83;
  --color-secret-of-mana-900: #1e285c;
  --color-secret-of-mana-950: #0e153f;
}

SCSS

$secret-of-mana: #5a6ae8;
$secret-of-mana-rgb: 90, 106, 232;
$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);
}