of a deep somewhat purplish blue color similar to that of a clear October sky
without immediate commercial value
of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky
used to signify the Union forces in the American Civil War (who wore blue uniforms)
blue color or pigment; resembling the color of the clear sky in the daytime
any organization or party whose uniforms or badges are blue
characterized by profanity or cursing
the atmosphere and outer space as viewed from the earth
