Cataract 3

"I learned from Seurat this important thing about colour and light, that 'a light' can be built from colour. I learned a great deal about interaction, that 'a blue' in different parts will play all sorts of different roles."

-- Bridget Riley

Although Riley is most known for her grayscale works (such as the others shown here) she has also experimented heavily with color. Cataract 3 is similar in form to Fall (directly behind you), but it also integrates color into the work. Try stepping close to the piece to see how Riley constructed the colors in it.