#596DCE

CSS

:root {
  --god-of-rain: #596dce;
  --god-of-rain-rgb: 89 109 206;
  --god-of-rain-oklch: oklch(0.567 0.15 272);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(230 54% 58%);
  border-color: oklch(0.567 0.15 272);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #596dce;
  --color-god-of-rain-50: #e7f3ff;
  --color-god-of-rain-100: #d8e5ff;
  --color-god-of-rain-200: #c0d0ff;
  --color-god-of-rain-300: #a0b1ff;
  --color-god-of-rain-400: #8097f7;
  --color-god-of-rain-500: #657be8;
  --color-god-of-rain-600: #5669c4;
  --color-god-of-rain-700: #44549e;
  --color-god-of-rain-800: #2f3e76;
  --color-god-of-rain-900: #1f2a53;
  --color-god-of-rain-950: #0f1738;
}

SCSS

$god-of-rain: #596dce;
$god-of-rain-rgb: 89, 109, 206;
$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);
}