Whats the meaning of true blue besides "true sadness" or the true color?

Question

ive seen that line in a madonna song called true blue but i dont think it about sadness coause the song is about true love

Answer 1

True Blue means loyal or dependable

Answer 2

true blue refers to being loyal, however I am not familiar with the Madonna song.

Answer 3

it means true pure, through and through

Answer 4

True blue means really loyal, but my screen name is true blue because I am a democrat (blue).  Plus the two words rhythm. :-)

Answer 5

Genuine/loyal/faithful

Answer 6

http://www.youtube.com/watch?v=ceWKrsJX9...

This is a good explanation...It's a famous Australian song and was Steve Irwin's favorite...It was played at his funeral.