1983 Galasso 1933 Goudey Reprint Baseball Forum

I have the St. Louis team set of these, (yes, they are all the Glasso reprints), but some have color differences. For example, #34 Bob O'Farrell, the colors are darker on one with the stripes on his socks a bluish-brown, while on another card the colors are lighter and the socks are reddish-brown. The playing field grass is green in one and lime green on the other. Are there varients or are these just color printing errors? I have 5 cards in this set that are color varients.