The colour really doesn't mean a thing anymore. The pink and the blue could be exactly the same depending on who makes it. What is important is to use the same composition not colour. As stated in the attached article (ignore the brand name sales pitch) getting the same composition is made much more difficult because the colour no longer indicates what type was used.
Soooo... ignore the colour and just make sure you get the recommended formula.
https://www.holtsauto.com/prestone/n...erent-colours/
https://www.autoserviceworld.com/job...rrect-coolant/