#3169CB

CSS

:root {
  --god-of-rain: #3169cb;
  --god-of-rain-rgb: 49 105 203;
  --god-of-rain-oklch: oklch(0.537 0.164 260.7);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(218 61% 49%);
  border-color: oklch(0.537 0.164 260.7);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3169cb;
  --color-god-of-rain-50: #dcf6ff;
  --color-god-of-rain-100: #cbe9ff;
  --color-god-of-rain-200: #afd4ff;
  --color-god-of-rain-300: #8ab6ff;
  --color-god-of-rain-400: #649dfe;
  --color-god-of-rain-500: #4281f0;
  --color-god-of-rain-600: #386ecb;
  --color-god-of-rain-700: #2d58a3;
  --color-god-of-rain-800: #1b417a;
  --color-god-of-rain-900: #122d56;
  --color-god-of-rain-950: #04193a;
}

SCSS

$god-of-rain: #3169cb;
$god-of-rain-rgb: 49, 105, 203;
$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);
}