What is the transparent color in oil painting?

First of all, there should be no white, such as khaki, lemon yellow and pink green, which are not transparent colors. The characteristic of transparent color is that the primary color looks deep, just like seeing the seabed, and then many layers can be diluted by dilution. Such a color can be regarded as a transparent color. Such as emerald green, crimson, Prussian blue, etc.

Transparent color is often used for mask dyeing. It's not just as simple as adding colored oil. Color oil is heavy oil, and a certain amount of turpentine should be added for proper dilution.

Moreover, the expression of time is wrong. Typically, before Impressionism, one of the classical techniques was extended from a single Perra technique. In my opinion, Titian of Venice School is the top master of mask dyeing technology.