#456AB8

CSS

:root {
  --god-of-rain: #456ab8;
  --god-of-rain-rgb: 69 106 184;
  --god-of-rain-oklch: oklch(0.536 0.13 263.5);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(221 45% 50%);
  border-color: oklch(0.536 0.13 263.5);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #456ab8;
  --color-god-of-rain-50: #e3f5ff;
  --color-god-of-rain-100: #d3e8ff;
  --color-god-of-rain-200: #bad4ff;
  --color-god-of-rain-300: #98b6fa;
  --color-god-of-rain-400: #769deb;
  --color-god-of-rain-500: #5883db;
  --color-god-of-rain-600: #4b6fb9;
  --color-god-of-rain-700: #3c5995;
  --color-god-of-rain-800: #28416f;
  --color-god-of-rain-900: #1b2d4e;
  --color-god-of-rain-950: #0b1a34;
}

SCSS

$god-of-rain: #456ab8;
$god-of-rain-rgb: 69, 106, 184;
$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);
}