NFHS rules and many others require pitchers to use single color gloves, and very lightly colored gloves can also cause trouble. Yes, I have seen mid-game protests and pitchers having to borrow someone else's to continue. Makes you wonder why the manufacturers keep cranking out those god-awful ugly multi-color jobs.
Bottom line, confine your search to solid color gloves, tan or darker.
(The brand patches/insignias don't count as a separate color, though.)