Why yellow predilection?
Observing his works, the Van Gogh predilection for the yellow colorwhich has various explanations.
One of them is that this painter took Digitalis Purpurea, substance used for Treat maniacod -dependent, sedative and antiepileptic crises. However, this altered the perception of colors In patients, who tended to see objects with a yellowish tone.
Another hypothesis argues that Van Gogh suffered from subacute closed angle glaucoma, visual ailment that explains the «halos» that he used to paint in some of his works such as Night coffee» either The starry night.
How do tonalities change over time?
A curious fact about The yellow tones used by Van Gogh It is that, given the processes of reduction and oxidation of pigments, these can change over time, especially with exposure to light.