Only you can know for certain, but the psychology of color does offer some accepted standards.
Yellow suggests happiness. Light and airy, yellow is perfect for sun-drenched rooms like kitchens, dining rooms, and bathrooms. Yellow can be invigorating. It can also make small rooms or entryways seem more expansive and welcoming.
Green is easily nature’s most predominant color. Because it blankets so much of the world, it can look equally beautiful and natural in your home. Cheerful like yellow and refreshing like blue, green is soothing and pleasing to the eye in whatever room you may choose.
Blue has been called America’s favorite color, and it’s easy to see why. From the comfort of denim to the refreshing beauty of a clear sky, blue will always be a calming and serene choice. It’s often a nice choice for bedrooms. It’s actually been known to bring down blood pressure because of its calming effect.
Violet, or purple, can be a rich, dramatic choice. It’s often associated with luxury. For others, it’s an indication of creativity. Lighter versions of violet–such as lilac and lavender–can provide the same calming effect in bedrooms as blue.
Red, the boldest, brightest color statement, fills a room with energy. Rich and elegant, red can actually increase blood pressure and heighten the senses. For that reason alone, it’s often perfect for a dining room.
Though a difficult color to live with in its purest form, orange is the source of many workable hues in a decorating scheme. Tangerine, salmon, peach, and coral are all popular variations of the color. As its placement between the two on the color wheel would suggest, shades of orange can fill a room with both the energy of a red room and the cheerfulness of a yellow.