Neutrals
The wearable base colors of a palette, camel, grey, navy and the like, that anchor a season's brighter shades.
Neutrals are the quiet, foundational colors of a season's palette, tones like cream, taupe, grey, navy or espresso brown, that are versatile enough to build a whole outfit around rather than draw attention on their own. Every one of the twelve seasons has its own specific set of six to eight neutrals, chosen to sit in the same hue, value and chroma family as the rest of the palette: a Light Spring's neutrals lean warm and pale, Sea Salt, Vanilla Ice, Toffee, while a Soft Summer's lean cool and muted, Sharkskin, Moonbeam, Espresso. This is why generic advice like everyone needs a black blazer and a white shirt can misfire, a pure jet black or optical white sits outside several seasons' neutral ranges entirely and needs to be swapped for a season-appropriate charcoal, cream or off-white instead. Neutrals typically form the bulk of a capsule wardrobe, worn as the base while the season's core and statement colors provide the accents.
Why it matters
Neutrals do most of the actual work in a real, everyday wardrobe, coats, trousers, bags, shoes, so getting them right in your own season's undertone and value matters even more in practice than nailing the occasional bold statement color choice.