TL;DR – Cool.
We all have our own favourite color or color scheme that we tend to gravitate towards. This colour will then become the colour that we always use, including for our own social media.
However, if you don’t have a representative colour yet, then perhaps you should try out this website called the ColorKuler, which figures out your Instagram color palette for you.
This website is easy to use, and it’s also a super useful tool to use especially if you’re trying to work on the overall look of your Instagram photos in your profile.
All you need is just your Instagram username. But if your account is private, you might want to set it to public because the site would not be able to give you a color palette if your account is private or empty.
You can try generating your own colour palette using the ColorKuler Instagram color palette feature here.