#4866C7

CSS

:root {
  --god-of-rain: #4866c7;
  --god-of-rain-rgb: 72 102 199;
  --god-of-rain-oklch: oklch(0.539 0.155 268);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(226 53% 53%);
  border-color: oklch(0.539 0.155 268);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4866c7;
  --color-god-of-rain-50: #e4f4ff;
  --color-god-of-rain-100: #d4e6ff;
  --color-god-of-rain-200: #bad2ff;
  --color-god-of-rain-300: #99b3ff;
  --color-god-of-rain-400: #7799f9;
  --color-god-of-rain-500: #5a7deb;
  --color-god-of-rain-600: #4d6ac7;
  --color-god-of-rain-700: #3d55a0;
  --color-god-of-rain-800: #293f77;
  --color-god-of-rain-900: #1b2b54;
  --color-god-of-rain-950: #0c1839;
}

SCSS

$god-of-rain: #4866c7;
$god-of-rain-rgb: 72, 102, 199;
$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);
}