Normal moles can have different colors. I would suggest finding a dermatologist in your area and let him/her examine your mole.
Thank you for your question. It's difficult to evaluate your mole through photographs because the lesion needs to be evaluated with an instrument called a dermatoscope. The dermatoscope allows the dermatologist to look for any abnormal or irregular characteristics, and if there are any, then a biopsy should be performed. Benign (non-cancerous) moles can be two different colors, but I highly recommend you consult with a board certified dermatologist to have your skin checked and to discuss treatment options that best suit your needs. Take care and good luck.