This is my front door area, not completely finished, but it is close.

What rug size and color should I get?

The distance between the door to the first step is 4'6"

I am thinking about 4x6 rug, dark color, brown or something.

Or it should be smaller?

I was looking at this one, but it is too light, it is not practical. Need something darker.

https://esalerugs.com/purple-4x6-copenhagen-area-rug-33124233

Please advise what rug would you get?

Thanks!