Plasmonic structural colors originate from the interaction between light and metallic nanostructures. Rapid development in nanofabrication and characterization of plasmonic structures provides an efficient way to control light properties at subwavelength scale, which can generate plasmonic structural colors. Here we introduce several representative plasmonic nanostructures which can generate visible structural colors, including nanogratings, perforated metallic films, metal-insulator-metal resonators, dynamically tunable color generators and perfect absorbers. We highlight the properties of plasmonic colors and discuss the intrinsic plasmonic resonance mechanisms. Plasmonic structural colors have the advantages such as ultra-small patterns and rapid response of external change, which are believed to offer a promising future in high-resolution color displays and real-time colors controlling.