Colours of photography backdrop??? 5 colours, which to choose?

I am looking for roughly 7-8 backdrops, which should equal be about 10′ x 13′. I already have black and white, however which other 5 colours would you recommend as standard? Preferably 4 solid colour, 2 graduated, and 1-2 patterned clothes. Many Thanks.. XDXD (points up for [...]