Basic Color Samples

Basic Color Samples is an auto part item.

Source
Basic Color Samples can be obtained through completing Cindy's The Ever Elegant Regalia quest.

Colors
Obtaining Color Sample books allows the player to choose from a wider range of colors when customizing the Regalia. The Basic Color Samples book unlocks Black Mica, Brown Quartz, Candy Green, Crimson, Dark Ruby, Ice Silver, Ice White, Metallic Lavender, Metallic Orange, Metallic Racing Green, Metallic Turquoise, Ocean Blue, Royal Gray, and Solid Yellow. Purchasing the other Color Sample books will unlock an even greater variety of colors.