<prompt> Blue color of contusion seen atFirst day2-3 days4-5 days5-6 days  <response>: The age of contusion Time since injury color change first day redHb 2-3 days bluedeoxyHb 4-5 days bluish blackbrownhemosiderin 5-6 days greenishhematoidin 7-10days yellowbilirubin By 14 days normal ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE NO 118 