My penis head was pink in color. after circumsization it started blackening. I need to have a black penis head. like my penis head's bottom. Any one has any suggestions? my Dick is 6.5 inches in length and with 5.5 inches in girth.

My penis head was pink in color. after circumsization it started blackening. I need to have a black penis head. like my penis head's bottom. Any one has any suggestions? my Dick is 6.5 inches in length and with 5.5 inches in girth.