Artist: Mondrian: Red, Yellow & Blue

Pieter Cornelis Mondriaan  was a Dutch painter and theoretician who is regarded as one of the greatest artists of the 20th century. He is known for being one of the pioneers of 20th-century abstract art, as he changed his artistic direction from figurative painting to an increasingly abstract style, until he reached a point where his artistic vocabulary was reduced to simple geometric elements.
(source: Wikipedia)