Brown 
Brown represents effectiveness, strength, reliability warmth, comfort, security, politeness, richness, and helpfulness. Brown usually represents earth and natural things. Brown can also create feelings of sadness and isolation brown can also be conventional and sophisticated.
Grey 
Gray is the color of independence and self-reliance, gray represents separation, lack of involvement and ultimately loneliness. Grey is associated with old age, death, taxes, depression or a lost sense of direction.
Silver
Silver represents prestige and cleanness. Silver can also come off as cold and scientific. Silver is balancing, harmonizing and sensitive.
Pink
Pink is a tranquilizing colour that symbolizes innocence and child-like flirtatiousness. Pink is usually associated with Spring, gratitude, appreciation, admiration, sympathy, homosexuality, kittens, femininity, health, love, sex, marriage, joy. Pink is used mainly in products for children and babies.
BlueBlue can create feelings of calmness or serenity but if it is over used it can create feelings of sadness. Blue represents things that are peaceful, tranquil, secure, loyal, trust worthy and orderlyBlack
Black reflects authority and power, it is also associated with unhappiness, formality, and sophistication.White
White reflects purity, cleanliness, sterility,youthfulness, mildness and neutrality.White can create feelings of peace and comfort.GoldGold is associated with value it suggests expensive, and prestige.
