In Abraham Bloemaert’s The Adoration of the Magi from 1624, the cloak of the Virgin Mary appears to use two different blues, with its lower passages painted in the duller hue of indigo, which has faded slightly. Examination of the paint layer has shown that the artist used a beige ground, onto which he painted a thin layer of indigo blue mixed with lead white.] https://opensea.io/assets/matic/0x2953399124f0cbb46d2cbacd8a89cf0599974963/113765307981431829764847866996762575898717325666327047296442840898444915113986/