My favorite colors to work with are #1 green, #2 black, #3 brown, #4 other natural and/or neutral colors, #5 red.
However, when I am making something for others, I will choose colors that suit that person. For example, when choosing colors for the autumn wedding afghan, I chose shades of blue that I felt were too bright, but they were perfect for my friends. Also, the afghan for Becky was made in brown because my sister likes brown in her house. (Brown also matches my cat!)
photo album of my stash - you will find many similar colors represented there!