A range of colored ties can complement a blue shirt, including red, pink, white and gray. The key to matching a tie with a blue shirt depends upon the actual shade of blue of the shirt itself.
A light blue shirt is nearly as flexible when it comes to tie pairings as a plain white shirt; virtually any tie color matches pale blue or baby blue. If the shade of blue of a shirt is darker, then the spectrum of appropriate tie hues becomes more limited. With a darker blue shirt, ties in lighter colors are the most appropriate selections.