my wife and I are in process of buying a new house. We are planning to
paint most rooms and have been investigating color schemes.

I am looking for web sites which will show color schemes. Behr.com is
what we've used so far.

One issue we have is we plan on making a wall X color and all other
walls y color. I have not found a web site which allows me to see
this, suggestions? Basically our accent color is being put on a single
wall, but we haven't seen web sites which support this.

Feedback welcome.