My favorite color is blue, whats yours?
Yes  mee too, Its primary colour. It lies eween violet and gree
It is also a color that calms a person when they look at it according to color psychology.
Yes, The clear daytime sky and the deep sea blue because of an optical effect
Yeah that is correct! In ancient Rome, blue was associated with barbarians
ok ,the eye preceives blue when observing light with a dominant wavelength
Blue was the symbolic color of the French Revolution, but France had trouble maintaining a large enough supply of indigo dye to keep its military dressed in blue
Good, Europeans wore clothing coloured with the vegetale dye woad until it was replaced by the finer indigo from america