Western conventional colors noble
Western conventional colors 
Gemstone Color Encyclopedia What is Purple Sapphire? Explanation of the origin, meaning, and color combinations of this gemstone.
Gemstone Color Encyclopedia What is Purple Spinel? An explanation of the origin, meaning, and color combinations of this gemstone.
Traditional Chinese Colors What is purple (murasaki)? An explanation of the origin, history, and color schemes of this traditional Chinese color.
Gemstone Color Encyclopedia What is Tanzanite? An explanation of the origin, meaning, and color combinations of this gemstone.
Japanese Color Encyclopedia