What color does a $100 bill turn if it's fake?

Excuse me, but I'm curious about something regarding the authenticity of currency, specifically the $100 bill. Could you please enlighten me on what color a counterfeit $100 bill might exhibit? I've heard rumors that they sometimes have a distinctive hue that differs from genuine ones, but I'd like to hear a more definitive answer from an expert like yourself. Is there a specific color or color change that's commonly associated with fake $100 bills?