Something illegal is forbidden by law: It is illegal for motocyclists not to wear a crash helmet. If a thing is illicit it is done by someone who knows that it is disallowed by law but that under different circumstances it could be legal: The crew were involved in the illicit import of brandy (it is basically legal to import brandy but not the way they did it).
Yellow symbolizes the golden land of South America. Red stands for courage and the blood of the freedom fighters. Blue represents the ocean separating South America from Spain. Effective date: 17 February 1954.