#2969CF

CSS

:root {
  --god-of-rain: #2969cf;
  --god-of-rain-rgb: 41 105 207;
  --god-of-rain-oklch: oklch(0.538 0.171 259.6);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(217 67% 49%);
  border-color: oklch(0.538 0.171 259.6);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #2969cf;
  --color-god-of-rain-50: #daf6ff;
  --color-god-of-rain-100: #c9e9ff;
  --color-god-of-rain-200: #acd5ff;
  --color-god-of-rain-300: #86b7ff;
  --color-god-of-rain-400: #5e9dff;
  --color-god-of-rain-500: #3981f5;
  --color-god-of-rain-600: #326ece;
  --color-god-of-rain-700: #2758a6;
  --color-god-of-rain-800: #16417c;
  --color-god-of-rain-900: #0e2d58;
  --color-god-of-rain-950: #02193b;
}

SCSS

$god-of-rain: #2969cf;
$god-of-rain-rgb: 41, 105, 207;
$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);
}