#3869C7

CSS

:root {
  --god-of-rain: #3869c7;
  --god-of-rain-rgb: 56 105 199;
  --god-of-rain-oklch: oklch(0.537 0.156 261.9);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(219 56% 50%);
  border-color: oklch(0.537 0.156 261.9);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3869c7;
  --color-god-of-rain-50: #dff6ff;
  --color-god-of-rain-100: #cee8ff;
  --color-god-of-rain-200: #b2d4ff;
  --color-god-of-rain-300: #8eb6ff;
  --color-god-of-rain-400: #6a9cfa;
  --color-god-of-rain-500: #4981ec;
  --color-god-of-rain-600: #3f6ec7;
  --color-god-of-rain-700: #3258a0;
  --color-god-of-rain-800: #1f4177;
  --color-god-of-rain-900: #152d54;
  --color-god-of-rain-950: #061939;
}

SCSS

$god-of-rain: #3869c7;
$god-of-rain-rgb: 56, 105, 199;
$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);
}