#2A68D1

CSS

:root {
  --god-of-rain: #2a68d1;
  --god-of-rain-rgb: 42 104 209;
  --god-of-rain-oklch: oklch(0.537 0.175 260.3);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(218 67% 49%);
  border-color: oklch(0.537 0.175 260.3);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #2a68d1;
  --color-god-of-rain-50: #daf6ff;
  --color-god-of-rain-100: #c9e9ff;
  --color-god-of-rain-200: #acd4ff;
  --color-god-of-rain-300: #86b6ff;
  --color-god-of-rain-400: #5f9cff;
  --color-god-of-rain-500: #3a80f7;
  --color-god-of-rain-600: #326dd0;
  --color-god-of-rain-700: #2857a8;
  --color-god-of-rain-800: #16407d;
  --color-god-of-rain-900: #0e2c59;
  --color-god-of-rain-950: #03193c;
}

SCSS

$god-of-rain: #2a68d1;
$god-of-rain-rgb: 42, 104, 209;
$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);
}