According to Kabbalah tradition, there are 72 names of God, which are each 3 letter combinations that are based on the biblical verses of the parting of the Red Sea. Each name has a specific property, such as miracles or protection, that one can connect to simply by focusing on the letters. To learn more, read the article, What is Kabbalah?
In Kabbalah, colors also hold meaning. Blue means love; red means strength; yellow means balance; purple means character; orange means honesty, green means growth; brown means selflessness.