Wassily Kandinsky, Bauhaus questionnaire, 1923. Bauhaus Archiv Berlin.
“For experimental purpose, the wall painting workshop of the Bauhaus in Weimar requests responses to the following questions. 1. Each of the 3 shapes should be entirely filled in with one of the 3 colors yellow, red and blue. 2. If possible, provide a rationale for this choice.
Have a try and visit the MoMA site.