To find out, the researchers obtained three tubes of yellow paint from the Royal Museum of Fine Arts Antwerp that were manufactured around the same time that Van Gogh was working.

The researchers squeezed chrome yellow paint from the tubes and spread a thin layer on a microscope slide. Then, they artificially aged the samples with an ultraviolet lamp.

The ceiling, that light just glows off of it. It rides that line of yellow and green, but it’s very cheery and has a level of sophistication to it, I think because it edges into that chartreuse.” ...

Tubes of cadmium yellow paint, including Cadmium Yellow Lemon No.1 produced by the Parisian manufacturer Lucien Lefebvre-Foinet, litter Miró’s two studios in Mallorca, Spain.