#3066D8

CSS

:root {
  --god-of-rain: #3066d8;
  --god-of-rain-rgb: 48 102 216;
  --god-of-rain-oklch: oklch(0.54 0.185 262.8);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(221 68% 52%);
  border-color: oklch(0.54 0.185 262.8);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3066d8;
  --color-god-of-rain-50: #dbf5ff;
  --color-god-of-rain-100: #cae8ff;
  --color-god-of-rain-200: #add3ff;
  --color-god-of-rain-300: #88b4ff;
  --color-god-of-rain-400: #629aff;
  --color-god-of-rain-500: #3f7dfe;
  --color-god-of-rain-600: #366ad6;
  --color-god-of-rain-700: #2b55ac;
  --color-god-of-rain-800: #193f81;
  --color-god-of-rain-900: #102b5b;
  --color-god-of-rain-950: #04183e;
}

SCSS

$god-of-rain: #3066d8;
$god-of-rain-rgb: 48, 102, 216;
$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);
}