I'm working on an application and utilizing a blue color to indicate interaction. Links are indicated with the blue color and an underline, the buttons have a blue background, tooltip icons have a blue background, etc.
My question is: How do I apply color to indicate interactivity to table headers in a table with a mix of sortable(interactive) and unsortable(not interactive) columns?
I have thought of three approaches to this:
Keep the sortable headers blue and the unsortable black. Drawback: Column headers are traditionally the same color so having some blue and some black breaks from the norm. This would mostly look weird I think.