Circles, circles – circles all over the place. But what are they all about? These circles are the elements, which we use for visualising the colour combinatorics in our project. Two colours were the starting point. To these we add the two accompanying complementary colours. With their combinations the colours can be put into correlation. For the implementation we use large paper strips as carriers and a large base. Instead of paint brushes we use two large brooms and the four self-made gouache colours, which we then apply circularly to the paper. The result: 144 circles on 12 papers each with 3 circles.