These colors are your wardrobe's foundation, upon which you can build upon with bolder, more personal hues.
I recommend starting with 2-3 neutral colors to set a versatile base foundation. Neutrals may sound boring or “safe,” but these colors will help you create a base that will make it easier to put outfits together. Consider colors like blacks, whites/creams, camels/browns, light/dark grays (some blues and greens could be considered base colors). These colors are your wardrobe's foundation, upon which you can build upon with bolder, more personal hues.