There is probably no true grey, it being a combination of black and white. Sometimes the colour of nuns’ habits, it means devotion and ministration.
Grey indicates fear, fright, depression, ill health and confusion.
If everything in your dream is grey, you may feel emotionally distant or detached. This is a common dream to have if you’re feeling sick.
Dreams of grey neither black nor white, grey is somewhere in between. You are unsure about how you feel; you are on the fence feeling confused and murky. Grey matter represents your brain, mental process, logic and thinking. T his dream is giving you the message that you need to organize your thoughts systematically so that you can make a decision.