Hey First name / friends!
Color is such an important part of your artwork, and it can also be an important part of keeping up with trends. Certain color palettes go in and out of style, so it's helpful to keep that in mind if you want to create art that's fresh and modern.
That's not to say that you have to use trendy color palettes in your artwork. It's just another tool to help you make marketable art. As with all trend tracking, you aren't required to follow trends to see success. It's all about balancing what's currently trending with your own style and the things that inspire you.