If you limit your palette to a couple of vibrant hues played off of a neutral background, a playful mix of prints looks cohesive while effectively moving your eye around the space. http://www.apartmenttherapy.com/mixed-prints-in-decor-175119
If there is one thing I like, it's the use of bold colours to Pop in a room. This purple accent is just stunning! I LOVE those chairs and that giant lamp. Makes the room look much larger than it is. One of my favorites for a modern look.