No, Tab ( at least original Tab, and not that fake tab energy drink that they tried to market a few years ago) is just cola, so looks brownish like coke. It just had a pink label because of sexist marketing.
Well now I’m just overly concerned with the fact that I don’t know what color any of the beverages I drink that come in cans are. Is tomato juice even red? Who knows!? Truly a mystery for the ages which will never be solved.