#4463BE

CSS

:root {
  --god-of-rain: #4463be;
  --god-of-rain-rgb: 68 99 190;
  --god-of-rain-oklch: oklch(0.524 0.147 267.1);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(225 48% 51%);
  border-color: oklch(0.524 0.147 267.1);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4463be;
  --color-god-of-rain-50: #e4f4ff;
  --color-god-of-rain-100: #d4e7ff;
  --color-god-of-rain-200: #bad2ff;
  --color-god-of-rain-300: #99b4ff;
  --color-god-of-rain-400: #779af5;
  --color-god-of-rain-500: #5a7fe7;
  --color-god-of-rain-600: #4d6cc3;
  --color-god-of-rain-700: #3d569c;
  --color-god-of-rain-800: #293f75;
  --color-god-of-rain-900: #1b2c52;
  --color-god-of-rain-950: #0c1837;
}

SCSS

$god-of-rain: #4463be;
$god-of-rain-rgb: 68, 99, 190;
$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);
}