Blonde Girl Shows Off In The Purple Bed

As a result of its association with royalty and luxury, the term purple is often used to describe pretentious or overly embellished literature. For example, a paragraph containing an excessive number of long and unusual words is called a purple passage (Purple prose).
• Microbiology
In April 2007 it was suggested that early archaea may have used retinal, a purple pigment, instead of chlorophyll, to extract energy from the sun. If so, large areas of the ocean and shoreline would have been colored purple; this is called the Purple Earth hypothesis.