Colour is one of the most powerful tools a designer can use and to do so you need a high understanding on how colour affects us, this is key in communicating messages effectively. Colour is all around us and it effects us in our day to day lives. For example, in nature we a know that red is a warning colour and that yellow can be in certain situations a danger colour. Over thousands of years we have interpreted colour to mean things, in a way we have learnt to read the world around us using colour. However, living in a modern society people think that this development has been lost, but it has not. Understanding the power that colour holds over us and using this effectively is what designers strive for.