Blue is one of the most popular colors, and it’s often associated with calmness or tranquility. A sky blue rug can make a daring statement in your living room, dining room, bedroom or den and although ideally, any rug should match the rest of your décor, there are no firm rules. Yellow, black and brown are considered the colors that best complement sky blue. Apart from the color, one important consideration is the size of the rug. Area rugs come in a variety of sizes and shapes, and a rug that’s too large or too small for the room often just doesn’t look right. If the rug is to go under your dining room table, a good rule of thumb is to have a couple of feet extending on each side. That makes it easier for seated guests to get up and sit down.