My pale blue and chocolate blanket - a WIP

My latest WIP is a blanket in pale blue and chocolate.

Obviously, they won't be just like this.

Also just as obvious is the fact there will be many more. They'll be joined with a pale brown (is "latte" too stereotyped a colour? :P ), and then a border will be made with all three colours - how that comes to look, I'm not quite sure right now.

Progress on the solid squares

I have 7 pale blue solid squares made, and I've run out of the pale blue yarn. They're 6 inch squares, and my bed is queen sized (The mattress is 60in by 80in), so I have a helluva way to go.
Someone want to do the maths for me on how many more squares I need to do?