How to change color scheme in outlook.com
Go to outlook.com and log in to your email account @hotmail @live @outlook or @msn and click on the settings icon.
From the drop menu that shows up you will see different colors, for now they are only limited to about twelve, which I think is still a huge variety to choose from.
Pass the mouse over the color tabs which will bring a preview of the different colors presented. Once you are satisfied with your color choice click on it to activate.