Black, white, and grey are pure neutrals. Absent from the colour wheel because they are absent of colour. In a strict sense, they are the only true neutrals. They are versatile, graphic, and can feature heavily in your wardrobe if they suit your complexion. 

In fashion, quiet colours like dark blue, browns, creams, tan, and taupe, olives, and blue denim are neutrals too. Most earth tones are considered neutrals because they are found in nature. Fashion neutrals are better suited to many complexions than pure neutrals.

Some non-neutrals are so versatile to you that they function like a neutral in your wardrobe. These are personal neutrals. Colours like burgundy, eggplant, blush pink, red, burnt orange, or metallics can be “neutral” for you, and non-neutral for others.