Color and Meaning

Stars of David appear in almost any imaginable color:
The one on the center of the Israeli flag is BLUE like the stripes of the flag which represents the Jewish prayer shawl (Tallith).
The emblem of the Israeli Emergency Medical Service is a RED Magen David – Red like blood? Red like the Red Cross?
The emblem of the Israeli College of Para-veterinary studies is GREEN, like the green ecological movements, like nature in spring.
Alexander Mishory in his Hebrew book "shuru Habitu Ureu " wrote that the colors of the yellow patch were YELLOW AND BLACK because in the western Christian culture they stand for treason and heresy and it was used to describe Judas in Christian art.