If you are done with the basics of the room,The selected color need to be related with the color of the walls and full study room coloring.you also need to select the new stylish modern typs colors. you can used any color in your study room beacouse your study room are already stylish and posh,any colors matching study room and any colors is sutable in study room.
first consider your study room layout and study room designs than suggest a one good color and start your coloring work
.spand your lightly time and you will creat a new modern,sexy a study room when you will be comeing your study room i hope your mood will be freash.