Hello. My name is Michael. I can help you with your question if you still need assistance.
Strangely enough there is a way to make this happen on the camera in only the viewfinder and not the pictures.
Can you please check the resulting pictures on a computer to see if they exhibit the same washes out color or if it is only when you view it on the camera?
What I suggest doing is a reset of the camera, but on this model, you might have to take several steps to do it.