Page "Arizona Diamondbacks" Paragraph 10

According to the original press release from Colangelo's group ( which remained posted on the team website during the first few seasons ) the chosen team colors were Arizona turquoise, copper, black and purple.

"... Turquoise was chosen because the greenish-blue stone is indigenous to Arizona, copper because Arizona is one the nation's top copper-producing states and purple because it has become a favorite color for Arizona sports fans, thanks to the success of the National Basketball Association's Phoenix Suns.