#3C64D9

CSS

:root {
  --god-of-rain: #3c64d9;
  --god-of-rain-rgb: 60 100 217;
  --god-of-rain-oklch: oklch(0.542 0.185 266.1);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(225 67% 54%);
  border-color: oklch(0.542 0.185 266.1);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3c64d9;
  --color-god-of-rain-50: #def4ff;
  --color-god-of-rain-100: #cde6ff;
  --color-god-of-rain-200: #b2d1ff;
  --color-god-of-rain-300: #8fb2ff;
  --color-god-of-rain-400: #6b97ff;
  --color-god-of-rain-500: #4c7aff;
  --color-god-of-rain-600: #4168d7;
  --color-god-of-rain-700: #3353ad;
  --color-god-of-rain-800: #203d81;
  --color-god-of-rain-900: #152a5c;
  --color-god-of-rain-950: #07173e;
}

SCSS

$god-of-rain: #3c64d9;
$god-of-rain-rgb: 60, 100, 217;
$god-of-rain-light: mix(#fff, $god-of-rain, 20%);
$god-of-rain-dark: mix(#000, $god-of-rain, 20%);

.element {
  color: $god-of-rain;
  box-shadow: 0 0 0 2px rgba($god-of-rain, 0.35);
}