>>5794025There are some synthesized pigments like synthetic vermilion, red lead, lead-tin yellow, verdigris. In at least one instance, Egyptian blue was used but was generally lost.
Some earth colors are more saturated than to be expected.
>>5793961It depends how close you want to follow them and what time period. For example northerners used chalk for grounds on oak panels. Italians used gypsum-based whiting, the best being slaked plaster, on usually poplar, but cherry and walnut were sometimes used too.
You want at the least lead white, preferably stack, because it is more suited for their practices.
The blues were azurite, lapis lazuli, sometimes indigo lake, and very rarely blue ochre. A bit later, smalt was used and synthesized azurite or bice. None of which are commonly used anymore.
Lead-tin yellow and vermilion were used very often in skin tones but earth pigments were also used.
Lake colors were used more, especially as glazes.
Unlike today where mediums are added for special effects onto tube paint, the oil was worked in some ways primarily to make it yellow less and dry faster, and most often ground with the pigments. The use of different oils, resins, additives, are situational.
Check out Luis Borrero on youtube. His take is generally accurate.
