Air superiority blue (#72A0C1) and Citron (#9FA91F) appear together across 6 master palettes in our corpus, most prominently in the work of Bertalan Por, and Morgan Russell and the Synchromism tradition. Painters typically deployed air superiority blue at an average of 6% of the canvas, with citron at 5%. Third colors most often completing the combination include Dark olive green (#556B2F), Wine (#722F37), and Raisin black (#242124).