In an attempt to create an intuitive color mixing model, computer graphics pioneers at PARC and NYIT developed the HSV model in the mid-1970s, formally described by Alvy Ray Smith in the August 1978 issue of "Computer Graphics". In the same issue, Joblove and Greenberg described the HSL model—whose dimensions they labeled "hue", "relative chroma", and "intensity"—and compared it to HSV.