quick question i am convinced on dulux trade thanks for the advice on here ppl

I wanted to do the ceilings and wall a white colour. However, i went to the the stores and got confused with Dulux vinyl matt in pure brilliant white and just 'white'
What would be the difference to newly plastered rooms? Will 'White' be a more dull white and won't look as good when you trying to create a light reflecting finish/room?
My woodword (architraves/skirting/stairs are PBW quick gloss)
I asked the shops no tester pots for Dulux trade vinyl matt in white or PWB so i can compare. And on can't find anything on website either :(