There are so many ways that you can add color to a room without painting the walls. especially if you live in a rental. 1.) Go big! with colorful artwork. Large colorful artwork adds a pop of color and focal point to the room. Focal points are really important in the Interior design industry. It's the first thing that gets our attention when entering a room. 2.) Here's a chance to put your own personal style to a room by adding bold colorful Throw pillows or throw blankets. pair pillows in threes or just two flanking each side of the sofa. 3.) Invest in a colorful sofa or reupholster your existing sofa for a fresh colorful new look. 4.) Fill your home with plants. Adding plants or flowers around your home can bring interest and color to your home. "Tip" plants are a great way to hide any cord running along the floors. 5.) Try incorporating bold and colorful drapery for vertical interest. by placing the drapery rod higher towards the ceiling, it makes the ceiling feel higher than they actually are.