Red is the color of the root chakra (energy center).  This energy center keeps us rooted to the ground which is to say, the material world.  People with a very strong root center will tend to value material things and desire to have a lot of possessions and a lot of money.  They will tend to judge people on material things as well — how they dress, where they live, what kind of car they own, etc.  Red is associated with excitement and intense feelings.
    Most people don't realize how much of our personality comes from our energy centers.  If the red center is very dominant, you will probably get angry easily, not be tolerant of those who have different opinions than you, or who are different from you in any way that you consider significant, and be very attached to things to the point of believing that you actually own pets, trees growing on your property, etc. 
    On the other hand, if your red center is relatively weak, you will probably not be very good at money management, be passive to the point of letting people take advantage of you and value things only for how useful they are.
    Hopefully, not too many people are that out of balance in either direction.
    So what can you do if you, or someone close to you, is out of balance in the root chakra?

    For a person who has a very dominant red center:

• Wear green, blue and purple clothes frequently, avoid red and orange.
• Eat and drink green, blue and purple foods, avoid a lot of red and orange.
• Wear green, blue and purple gemstones and crystals, silver or white gold.
• Wear green, blue or purple sun glasses.
• Close your eyes and visualize the world around you being very blue, like being under water.

    For a person who has a weak red center:

• Ware read and orange clothes frequently
• Eat red and orange foods
• Wear read and orange gems and crystals, gold and copper
• Wear pink, orange, brown or yellow sun glasses.
• Close your eyes and visualize the world around you all red.