Here's a detail from Nicolas Poussin's 'The Adoration of the Golden Calf', which is on display in Room 19. The painting and its companion piece, 'The Crossing of the Red Sea' were made for Amadeo dal Pozzo, a cousin of Poussin's major Roman patron, Cassiano dal Pozzo.
#Poussin took the design for the group of dancers from his 'Bacchanalian Revel before a Term of Pan' (which we posted just a couple of days ago, head to our profile page to see it) another picture of pagan celebration, but turned the group through 180 degrees. The even distribution of blue, red and orange throughout the painting helps to unify the composition as a whole, but colour is also used to isolate individual figures.
Detail from Nicolas Poussin, 'The Adoration of the Golden Calf', 1633-4 © The National Gallery, London. #poussin #nicolaspoussin #art #arthistory #nationalgallery