It all depends
by Melissa Savelloni - Posted Wed October 31, 2007 @ 10:18 AM
On what is being advertised.
Red is a color that is commonly associated with speed. Since most stores adopted RED for "sale" signs, it seems that Red is used to indicate that the prices are "Sale" prices.
Blue is the most common color for insurance and healthcare advertising, because blue is a color that is associated with safety. Its supposed to be a soothing color, which is what healthcare companies want to you feel, safe.