Blue-gray� (#6699CC) is a mid-tone cool shade that appears across 5 master palettes in our corpus, most prominently in the work of Edwin Lord Weeks, António de Carvalho da Silva Porto, and Cagnaccio di San Pietro and the Romanticism tradition. Master painters paired it most often with Light salmon (#FFA07A), Yellow-green (#9ACD32), and Bone (#E3DAC9). The combination forms a steady, atmospheric chord, built on a complementary hue split, leans on warm companions to lift a cool source color, with the pair colors held at a similar value to the source.
