Orange
A warm color that connotes of tropical, luxury, passion and exotic things. The color itself expresses enthusiasm, vibrant and expansive. Your logo may just captivate the right kind of attention once you use color orange.

Yellow
Color that exudes intellect, faith, goodness and friendship. Yellow also vibrates optimism, happiness, idealism, and imagination. Unless your company does convey bright, cheery feelings that you are inclined to reflect in your logo, yellow could really work well as background color.

Blue
The most popular color that convey peace and tranquility, loyalty and fidelity, harmony, trust and confidence. For those who are keen on using the 216 color palette, blue is abundant in all shades. They can be excellent dominant color for web site logos which convey the lighthearted and positive mood.

Purple
A rich color that exudes mystery, royalty and spirituality. For the unconventional, creative and prides themselves of being unique, your logo may work well with lavender in it. It also conveys justice and truth.

Gray
Connotes neutrality, stability and wisdom…

White – it is the color of cleanliness and purity, youth, simplicity, innocence, friendship and peace. White has become a very popular background color in web sites, owing to the best readability it offers onscreen.

Green
Conveys neutrality, growth, money, humility and wisdom. It is a kind, generous color and often a logical choice for financial sites and those that represent fertility, healing and ecology in many cultures.

Black
As always have been considered a mournful, heavy and depressing color. Although, it also connotes an air of detached elegance and sophistication and mystery.

Red
Considered as the hottest of all colors, it represents all things intense and passionate. It connotes danger, heat and fire, speed and zest, blood and excitement, competition and aggression. As such red can really be an annoying, disquieting or exciting color depending on the intensity of its used in your logo.