Place a mat on top of the picture. Use a mat that is slightly lighter than the colors in the picture but slightly darker than the wall. This adds a visually pleasing contrast to the picture.
Look at the mat and the picture to analyze the color combination. The color of the mat should complement the colors in the picture. For example, consider a picture that features dark shades of green, brown and black. In this instance, choose a tan-colored mat.
Place the picture and the mat in a frame that is similar in color to the tones in the picture. Various shades of black or gray usually work well with dark pictures. Bright colors may create a contrast that is distracting.
Frame the picture in a frame that is appropriate in size in terms of where you will display it. For example, if you have a large area above a couch, use a large frame and mat to feature your dark picture. Even if the picture is on the smaller side, a large frame and mat will bring it into focus.