true blue: Meaning and Definition of
true' blue'
- a nonfading blue dye or pigment.
- a person who is true-blue.
- (in the 17th century) the color adopted by the Covenanters in contradistinction to the royal red.
true-blue
Pronunciation: (tr'bl'), [key]
— adj.
- unwaveringly loyal or faithful; staunch; unchangingly true.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.