When I first set up 735xt I set color as blue. For some reason color now changed to red and I cannot figure out how to change it back to blue. Any help appreciated.
Are you talking about the accent color for the time of day screen? If so, with the Use Profile Color setting enabled, the Digital watch face takes on the accent colour of the most recently accessed activity profile, and that may have gone from blue to red simply because you used the watch to track a different sport.