#3364DC

CSS

:root {
  --god-of-rain: #3364dc;
  --god-of-rain-rgb: 51 100 220;
  --god-of-rain-oklch: oklch(0.54 0.192 264.2);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(223 71% 53%);
  border-color: oklch(0.54 0.192 264.2);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3364dc;
  --color-god-of-rain-50: #dcf5ff;
  --color-god-of-rain-100: #cae7ff;
  --color-god-of-rain-200: #aed2ff;
  --color-god-of-rain-300: #8ab3ff;
  --color-god-of-rain-400: #6398ff;
  --color-god-of-rain-500: #427bff;
  --color-god-of-rain-600: #3968da;
  --color-god-of-rain-700: #2d54af;
  --color-god-of-rain-800: #1b3e83;
  --color-god-of-rain-900: #112b5d;
  --color-god-of-rain-950: #041740;
}

SCSS

$god-of-rain: #3364dc;
$god-of-rain-rgb: 51, 100, 220;
$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);
}