Text Colors
Be exceptionally careful when setting text and background colors, Readability must be preserved at all costs. If the text is light colored then the background has to be dark and vice a versa. White and black always make a good combination, and red and blue are useful for highlighting. Try to avoid using the combination of black as a back ground with warm color text, as it might be great clarity wise but has a tendency to make visitors nauseous.

Color Chart
When dealing with international visitors, it's easy to get messed up by the meaning of color.

Blue represents peace, tranquility, calm, stability, Harmony, unity, trust, confidence. In China , blue is associated with immortality. In Colombia , blue is associated with soap. In India blue is the color of Krishna in the Middle East blue is a protective color.

Black represents power, sophistication, formality, elegance, anonymity, unhappiness wealth, mystery, fear, evil also. In USA black is for mourning.

Green represents nature, health, good luck, renewal, youth, vigor, spring, generosity, fertility, jealousy. In India green is the color of Islam. In Ireland green has religious significance (Catholic).In some tropical countries green is associated with danger.

Orange represents energy, balance, warmth, enthusiasm, vibrancy, flamboyancy. In Ireland orange has religious significance (Protestant).

Purple represents royalty, spirituality, nobility, ceremony, mystery, transformation, wisdom, enlightenment .

Red represents love, danger, desire, speed, strength, violence, anger, and blood. In China red symbolizes celebration and luck, used in many cultural ceremonies that range from funerals to weddings. In India red is the color of purity (used in wedding outfits).

White represents purity, simplicity, cleanliness, peace, humility, innocence youth, birth, good, and marriage. In Japan , white carnations signify death. In eastern cultures white symbolizes coldness and sterility. In USA it signifies virginity.

Yellow represents joy, happiness, optimism, idealism, imagination, hope, sunshine, and cowardliness. In Asia yellow is sacred, and imperial.