The colors companies use in their designs are important because different color are associated with different feelings and ideas, sending different messages to the viewer. If companies don't know the meanings of the colors they're using, they could end up sending the wrong message about their product.
Red - blood, war, power, love
Green - nature, growth, healing, money
Blue - water, truth, wisdom, tranquility
Black - elegance, death, evil, mystery
White - safety, purity, light, cleanliness
Purple - royalty, luxury, ambition, wealth
Yellow - sunshine, joy, intellect, energy
Orange - enthusiasm, fascination, creativity, success
Brown - stability, masculinity, reliability, approachability