Light purple nails of any person when occurs biologically, is a symptom of cyanosis, a disease that causes discoloration of your nails due to scarcity of oxygen within your blood. It happens when someone's body, which is sensitive to extremely cold temperatures, gets exposed to it. On the other hand, if a girl paints light purple on her nails intentionally, it means that she is in love with spring and its elements...that she has a soft side for spring flowers, birds, butterflies, etc. Also, the dictionary mentions the term purple nails to imply the talking stage of a girl with another person, whom she is attracted with. Besides, purple nails also depict various characteristics of a girl like her spirituality, imagination, compassion, mystery, inspiring wisdom, encouraging and uplifting nature, enlightenment, etc.