Changing colors in a design can dramatically change the mood or impression the user gets. Bright colors may make you feel happy or remind you of children, dark colors could be ominous or moody. Normally I will ask clients what feeling or mood they want to promote through their design. Sometimes, the word “classy” comes up.
A great way to make a design appear classy is to add gray. Gray is not a color people normally think of using because it seems drab, but take a look at a few examples and you’ll see it’s not at all boring.
Apple.com
Mercedes-Benz
Chanel
Color Theory is a very deep and extensive topic, but there are a few rules you can follow to evoke certain feelings easily. Creating a classy design is as easy as keeping it simple, and using gray instead of a brighter color.