That was one of my wife's first intros to having colored hair - a fund raiser at her hair dressers with I think pink for cancer extensions.
She now gets her hair colored, not entirely, mostly streaks, generally in the purple family. During Christmas they did horizontal green and red, not overpowering, but I admit it looked best as it faded.
Most recently, as her previous were fading, instead of having it redone she had some bright pinkish red strikes added. My wife is just a bit over 60 and gets lots of compliments, all credit goes to her hairdresser who owns the solon where we go. She also cuts my hair while my wife's color is setting, but leaves it a natural grey.