There are originally seven basic colours in the world which we can notice in a rainbow. It will have red, orange, yellow, green, blue, indigo and violet. All other colours were developed by combining a particular amount of one with in another colour. For instance, brown, pink, white, black and so on these are the examples of mixing colours. I will discuss about how colour plays a key role humans' mental health in day to day life. The colour will also impact human thinking. For example, everyone will have their own favourite colour and they want to paint their houses with their choice of colour and purchase things, dresses everything whatever they feel to own it for themselves. when it comes to public places there are some colours which gives them a peace of mind while seeing it for long time. In some researches, scientistsfound that white colour gives you peaceful mind and relaxation at longer time visual of colour. For instance in large number of hospital management prefer t...