Prussian blue

1706 Prussian blue

The book of science

Tom Sharp

Johann Jacob Diesbach chemistry Prussian blue

Prussian blue

Synthetic blues

Shades of Prussian blue

Spiritual blue

The human eye is exquisitely tuned to recognize many blues; however, in a work of art, almost any blue will do, provided the other colors are coordinated with it. Using successfully more than one blue is much more difficult than choosing the first one.

See also in The book of science:

Readings in wikipedia: