#5762C8

CSS

:root {
  --savoy-blue: #5762c8;
  --savoy-blue-rgb: 87 98 200;
  --savoy-blue-oklch: oklch(0.54 0.157 275.2);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(234 51% 56%);
  border-color: oklch(0.54 0.157 275.2);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #5762c8;
  --color-savoy-blue-50: #e9f2ff;
  --color-savoy-blue-100: #dae4ff;
  --color-savoy-blue-200: #c3ceff;
  --color-savoy-blue-300: #a4afff;
  --color-savoy-blue-400: #8594fa;
  --color-savoy-blue-500: #6b78ec;
  --color-savoy-blue-600: #5a66c7;
  --color-savoy-blue-700: #4852a0;
  --color-savoy-blue-800: #323c78;
  --color-savoy-blue-900: #222955;
  --color-savoy-blue-950: #111639;
}

SCSS

$savoy-blue: #5762c8;
$savoy-blue-rgb: 87, 98, 200;
$savoy-blue-light: mix(#fff, $savoy-blue, 20%);
$savoy-blue-dark: mix(#000, $savoy-blue, 20%);

.element {
  color: $savoy-blue;
  box-shadow: 0 0 0 2px rgba($savoy-blue, 0.35);
}