#536FCB

CSS

:root {
  --god-of-rain: #536fcb;
  --god-of-rain-rgb: 83 111 203;
  --god-of-rain-oklch: oklch(0.566 0.145 268.7);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(226 54% 56%);
  border-color: oklch(0.566 0.145 268.7);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #536fcb;
  --color-god-of-rain-50: #e5f4ff;
  --color-god-of-rain-100: #d5e6ff;
  --color-god-of-rain-200: #bdd2ff;
  --color-god-of-rain-300: #9bb3ff;
  --color-god-of-rain-400: #7b99f4;
  --color-god-of-rain-500: #5f7ee6;
  --color-god-of-rain-600: #506bc2;
  --color-god-of-rain-700: #40569c;
  --color-god-of-rain-800: #2b3f74;
  --color-god-of-rain-900: #1d2b52;
  --color-god-of-rain-950: #0d1837;
}

SCSS

$god-of-rain: #536fcb;
$god-of-rain-rgb: 83, 111, 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);
}