Correct me, but I believe colors are fair game, it's when you copy styles, proper names, and logos, there is a problem.
When you look at how people successfully "copy" someone else's scheme, they purposely misspell proper names and add (or remove) key styling points that make the first glance capture the similarity, but under scrutiny the differences can be seen. Like "Korn Flaykes" for example.
There are ways to do it. Consult your attorney.
Remember "McDowells" in that movie Coming To America?
"...Seattle has become the capital city of the New NFL" - Kip Earlywine