one coat cheap colour? any advice?

hi guys,
i need to paint lounge, I want a cheap colour, to be able to paint it once only. I want some semibrown colour - chocolate or someting, the room is about 25m2. I saw some cheap Wilko colours, I have no idea about the quality. What did you use? or dulux?

Unfortunately, cheap and one-coat don't go in the same sentence. You will be far better served buying a good trade emulsion mixed to your colour and using that. It may cost a bit more than standard emulsion but will cover better and should be thinned a little, thus going further and saving you time in labour when compared to cheaper paints. It can often cover in one coat as well but I'd recommend two for a good quality finish

You won't go far wrong with Dulux or Crown Johnstones trade paint.

I certainly dont believe in one coat wonders,

it can happen but seeing as a second coat takes a 1/4 time of the first. its best to go for 2 coats.