"NEUTRAL COLORS ~ In color theory, neutrals are called achromatic colors, meaning a lack of color. True neutral colors in this sense are therefore only black, white and variations of the two, i.e. shades of grey. The fashion world, on the other hand, classifies other colors such as brown, khaki and navy also as neutrals. What makes a color neutral in the fashion sense is that it doesn't compete with any other color, works well combined with other colors, and doesn't provoke much emotion. ‍Fashion neutrals are the backdrop for the bolder, brighter colors in your outfit. There is also another difference between true neutrals and fashion neutrals: Fashion neutrals are classed as either warm or cool based on their appearance. We tend to associate black, beige, tan and cream with warmth while white, grey and navy appear somewhat cool. When selecting your neutrals, select the appropriate colors according to your seasonal color category and the other colors in your color palette."

- The Concept Wardrobe