auburn vs brick red

auburn

adj

Of a reddish-brown colour.

noun

A dark reddish-brown colour, often used to describe hair colour.

brick red

adj

Of a warm brownish-red colour similar to that of red clay bricks.

noun

A warm brownish-red colour similar to that of red clay bricks.

How often have the words auburn and brick red occurred in a corpus of books? (source: Google Ngram Viewer )