#4E61D6

CSS

:root {
  --savoy-blue: #4e61d6;
  --savoy-blue-rgb: 78 97 214;
  --savoy-blue-oklch: oklch(0.543 0.18 272.1);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(232 62% 57%);
  border-color: oklch(0.543 0.18 272.1);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #4e61d6;
  --color-savoy-blue-50: #e5f2ff;
  --color-savoy-blue-100: #d5e4ff;
  --color-savoy-blue-200: #bccfff;
  --color-savoy-blue-300: #9bafff;
  --color-savoy-blue-400: #7b94ff;
  --color-savoy-blue-500: #6076fb;
  --color-savoy-blue-600: #5165d3;
  --color-savoy-blue-700: #4051aa;
  --color-savoy-blue-800: #2b3b80;
  --color-savoy-blue-900: #1d295a;
  --color-savoy-blue-950: #0e163d;
}

SCSS

$savoy-blue: #4e61d6;
$savoy-blue-rgb: 78, 97, 214;
$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);
}