#3C61E1

CSS

:root {
  --savoy-blue: #3c61e1;
  --savoy-blue-rgb: 60 97 225;
  --savoy-blue-oklch: oklch(0.542 0.199 267.1);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(227 73% 56%);
  border-color: oklch(0.542 0.199 267.1);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #3c61e1;
  --color-savoy-blue-50: #def4ff;
  --color-savoy-blue-100: #cde6ff;
  --color-savoy-blue-200: #b2d0ff;
  --color-savoy-blue-300: #8eb1ff;
  --color-savoy-blue-400: #6a95ff;
  --color-savoy-blue-500: #4c77ff;
  --color-savoy-blue-600: #4065de;
  --color-savoy-blue-700: #3351b3;
  --color-savoy-blue-800: #203c86;
  --color-savoy-blue-900: #15295f;
  --color-savoy-blue-950: #071641;
}

SCSS

$savoy-blue: #3c61e1;
$savoy-blue-rgb: 60, 97, 225;
$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);
}