I am currently trying to get ready my nursery for my little girl however the colour of the carpet is completely throwing out all my ideas. What colours would look best with a royal blue carpet?

I am decided to go down the route of buying a large rug to cover up most of the carpet however I am struggling to decide what colour rug to purchase. Could someone please help me with colours that would complement the carpet.

I have purchased white nursery furniture and was looking to add a few ochre cushions along with a grey armchair. What do people think?