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What are the meanings of colors ?
gpt
colors correspond to the 7 planets and the 7 chakras
the color wheel can be divided into 12 and overlaid onto the zodiac, generating that Aries = Red, Taurus = red-orange, Gemini = orange, etc.
Saturn: black, purple
Jupiter: blue
Mars: red
Sun: yellow, gold
Venus: green
Mercury: orange, multicolor
Moon: silver

From these things you can attribute some correspondences to each color. 
Colors can be combined with astrological symbolism to make a more powerful impact. 
Example: Green is the color of Venus and the heart chakra. Pink belongs to Pisces and is the exaltation of Venus. So green color represents Libra and love and social harmony, and goes good with pink. Then you can design a Venusian themed artwork with green and pink. 

If you are clever you will also discover the attribution of the 7 planets and 7 colors to the 7 notes in western music.