The accepted answer blip and the not accepted answer blip (vote accepted on and vote accepted off) have quite the same color. To many who are not visually accurate very much like myself, it becomes really confusing. In this question, I misclicked on the accepted answer to unaccept it thinking I didn't accept it just to know that I had.
It's RGB 94, 196, 175 (
#5ec4af) vs. 192, 192, 192 (
To clarify for those not getting it here's a demo of how the screenshot above looks for people with Color Blindness:
So while you may see the original image as two distinct things anyone with color blindness would see the exact same for an Accepted Answer and Unaccepted Answer.