1.Definition: belonging to or befitting a supreme ruler

"Purple tyrant"

Related Adjective(s):imperial, majestic, regal, royal

2.Definition: excessively elaborate or showily expressed

"A writer of empurpled literature", "Many purple passages"

Related Adjective(s):empurpled

3.Definition: of a color intermediate between red and blue

Related Adjective(s):purplish, violet