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