#3168CD

CSS

:root {
  --god-of-rain: #3168cd;
  --god-of-rain-rgb: 49 104 205;
  --god-of-rain-oklch: oklch(0.537 0.167 261.3);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(219 61% 50%);
  border-color: oklch(0.537 0.167 261.3);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3168cd;
  --color-god-of-rain-50: #dcf6ff;
  --color-god-of-rain-100: #cbe8ff;
  --color-god-of-rain-200: #afd4ff;
  --color-god-of-rain-300: #8ab6ff;
  --color-god-of-rain-400: #649cff;
  --color-god-of-rain-500: #4280f3;
  --color-god-of-rain-600: #396dcd;
  --color-god-of-rain-700: #2d57a5;
  --color-god-of-rain-800: #1b407b;
  --color-god-of-rain-900: #112c57;
  --color-god-of-rain-950: #04193b;
}

SCSS

$god-of-rain: #3168cd;
$god-of-rain-rgb: 49, 104, 205;
$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);
}