Columbia subject headings:
Blue in art.
Blue.
Color--Psychological aspects--History.
Color--Social aspects--History.
Symbolism of colors--History.
Harvard subject headings:
Blue in art.
Blue.
Color--Psychological aspects--History.
Color--Social aspects--History.
Symbolism of colors--History.
Princeton subject headings:
Blue in art.
Blue.
Color--Psychological aspects--History.
Color--Social aspects--History.
Symbolism of colors--History.