I Have Bluish Discoloration On My Great Toe. I Do

I have bluish discoloration on my great toe. I do not recall the direct trauma, but did wore high heels and danced after which I developed pain in my feet. 2 weeks later I developed the discoloration. It is 3 weeks now and it doesn't go away. I do not have pain over that area. Could it be something else then subungual hematoma.