David Hockney, O.M., C.H., R.A. (b. 1937)

'He experimented with colour and developed his own technique for doing his outdoor painting. He found an unusual colour which he called “Indian yellow,” a synthetic dye that he would wash all over his board and work on while it was still wet, so that the underlying Indian yellow influenced every colour he painted into it. “It created a kind of homogenous sensation over the landscape he was painting,” says Stafford “It did work for him and he created some every interesting landscapes.'
(David Hockney quoted in C. Sykes, interview with D. Stafford, David Hockney: A Rakes Progress, February 2010, p. 51).