#546FCA

CSS

:root {
  --god-of-rain: #546fca;
  --god-of-rain-rgb: 84 111 202;
  --god-of-rain-oklch: oklch(0.566 0.144 269);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(226 53% 56%);
  border-color: oklch(0.566 0.144 269);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #546fca;
  --color-god-of-rain-50: #e6f4ff;
  --color-god-of-rain-100: #d6e6ff;
  --color-god-of-rain-200: #bdd2ff;
  --color-god-of-rain-300: #9cb3ff;
  --color-god-of-rain-400: #7c99f3;
  --color-god-of-rain-500: #607ee4;
  --color-god-of-rain-600: #516bc1;
  --color-god-of-rain-700: #41569b;
  --color-god-of-rain-800: #2c3f74;
  --color-god-of-rain-900: #1d2b52;
  --color-god-of-rain-950: #0e1837;
}

SCSS

$god-of-rain: #546fca;
$god-of-rain-rgb: 84, 111, 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);
}