All colours represent certain feelings, moods, and can enhance these accordingly. Colours represent all the Five Elements, which is at the Basis of Feng Shui. Fire is red, and is also represented by orange and yellow. Water is black and blue. Wood is green, and also brown. Metal is white or silver or gold, and Earth is Yellow or brown. 

To enhance your career and wealth you can use the colours gold and red. In Chinese tradition, water also symbolises money, so the colours black and blue will also enhance finances.
Colours for bedrooms should be subdued, pastels are good.
Red is a colour, which will work well to improve relationships. Red symbolises happiness and the Chinese use red for weddings. Red is a very energetic colour and many people can't wear too much red, or they will feel too hyperactive. Blue is a colour that calms, and so does purple. It is good to know which colours can be used in certain parts of your house, so you can reach the desired effect. The colours in a business logo can have a huge impact on the success of the business.