We have a red brick house, the garage, front door and window trim is white. We want to paint the garage and front door a different colour can you suggest a few colours-I want the garage a different colour than the front door.

That's a hard one to answer without actually seeing everything. There can be many factors involved.

Found some information on the following sites that may be of help to you. I hope that it is.

Choosing Exterior Paint Colors for Your Home

Choosing the Right Paint for Your Home's Exterior | DoItYourself.com

Paint Your House: Tips For Choosing Exterior Colors

Pick Paint Colors For Your House Exterior