The deep autumn colour palette centres on warm, saturated shades with genuine depth: chestnut, mahogany, forest green, dark olive, maroon, deep teal, amber and bronze. These are earth tones darkened rather than brightened, built on the maximum depth score of 1.00 with a clear warm lean at 0.55.
Colouring in this season is dark and warm: deep brown or black hair, skin from warm medium through to deep, and eyes in dark brown, deep hazel or dark warm green. Temperature sits at 0.55 rather than the full 1.00 of Warm Autumn, and chroma is muted at -0.65. Depth is therefore the leading quality, warmth the second, and the combination is what separates it from Deep Winter, which shares the depth but leans cool. The same season is written as the deep autumn color palette in American spelling, and autumn is called fall in the United States, so deep fall and deep autumn describe this palette too.
