My Samsung tab 3 the screen turned to color instead of black and white how do I change it back?

[AC Question]

The screen colors are not black and white anymore it's bright colors and when I go to look at my page it's too bright.

 

[nahoku]

What screens used to be black and white? What OS are you running?

 

[Marilyn Bardsley]

Go to settings accessibility and turn grayscale off