puce

As adjectives the difference between pure and puce

is that pure is free of flaws or imperfections; unsullied while puce is of a brownish-purple color. According to the American Heritage Dictionary, deep red to dark grayish purple.

As an adverb pure

is to a great extent or degree; extremely; exceedingly.

As a noun puce is

a brownish-purple color. According to the American Heritage Dictionary, deep red to dark grayish purple.