#3069CA

CSS

:root {
  --god-of-rain: #3069ca;
  --god-of-rain-rgb: 48 105 202;
  --god-of-rain-oklch: oklch(0.536 0.162 260.3);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(218 62% 49%);
  border-color: oklch(0.536 0.162 260.3);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3069ca;
  --color-god-of-rain-50: #dcf6ff;
  --color-god-of-rain-100: #cbe9ff;
  --color-god-of-rain-200: #afd5ff;
  --color-god-of-rain-300: #8ab7ff;
  --color-god-of-rain-400: #649dfd;
  --color-god-of-rain-500: #4182f0;
  --color-god-of-rain-600: #386eca;
  --color-god-of-rain-700: #2c58a3;
  --color-god-of-rain-800: #1b4179;
  --color-god-of-rain-900: #112d56;
  --color-god-of-rain-950: #04193a;
}

SCSS

$god-of-rain: #3069ca;
$god-of-rain-rgb: 48, 105, 202;
$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);
}