#4B65C8

CSS

:root {
  --god-of-rain: #4b65c8;
  --god-of-rain-rgb: 75 101 200;
  --god-of-rain-oklch: oklch(0.539 0.156 269.5);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(228 53% 54%);
  border-color: oklch(0.539 0.156 269.5);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4b65c8;
  --color-god-of-rain-50: #e5f4ff;
  --color-god-of-rain-100: #d5e6ff;
  --color-god-of-rain-200: #bcd1ff;
  --color-god-of-rain-300: #9bb2ff;
  --color-god-of-rain-400: #7a98fa;
  --color-god-of-rain-500: #5e7cec;
  --color-god-of-rain-600: #5069c7;
  --color-god-of-rain-700: #3f54a0;
  --color-god-of-rain-800: #2b3e78;
  --color-god-of-rain-900: #1d2b55;
  --color-god-of-rain-950: #0d1839;
}

SCSS

$god-of-rain: #4b65c8;
$god-of-rain-rgb: 75, 101, 200;
$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);
}