Mars pigments were developed in the 19th century as synthetic alternatives to natural earth pigments. The "Mars" name derives from alchemy — iron was associated with the planet Mars since antiquity. Synthetic iron oxides offered painters greater consistency than natural earths, which varied by deposit and season.

Consistent, warm, and reliable. Mars yellow is yellow ochre made rational — the same colour every time, from every manufacturer, in every batch. It lacks the slight variability and geological romance of natural ochre but compensates with dependability. The working artist's trustworthy earth yellow.

The development of synthetic iron oxides (Mars pigments) in the 19th century is part of the broader industrialisation of art materials — the replacement of geologically variable natural pigments with chemically consistent manufactured equivalents. This standardisation enabled the growth of the global art materials industry but severed the connection between painting and specific landscapes that natural earth pigments had embodied.