Yes, RISO printing is famous for its vibrant and distinctive color palette. Unlike standard office printers that mix CMYK cyan, magenta, yellow, and black toner to simulate hues, RISO machines use pre-mixed spot color ink drums. Users can choose from a wide array of vivid standard shades as well as unique fluorescent neon and pastel inks (such as fluorescent pink, bright orange, and teal) that give prints a striking visual aesthetic.