Autumn Warm is the rarest of the four seasons in Korea, accounting for only about 10–15% of the population. The skin sits at a medium-to-deep brightness with a yellow undertone, has very little pink or flush, and tans easily. Because there is little visible flush, Autumn Warm types are sometimes (incorrectly) read as "tired-looking" — but in fact this season is the one that handles deep, rich color the best.
The most flattering colors are mustard, khaki, burgundy, olive green, terracotta, and caramel. The signature rule is "mid-to-low brightness, mid saturation warm-deep colors." Think autumn-leaf brown, oak-wine red, forest-moss olive — these are what make Autumn Warm look luxurious.
Makeup direction is "toned-down warm deeps." A yellow-base medium foundation matches the skin best. For lips, rotate brick, terracotta, deep red orange, and burgundy orange. Eyeshadow in bronze, deep brown, olive, and copper makes the eye look mature and deep, and a terracotta blush blended naturally on the apples of the cheeks finishes the look.
Accessory-wise, yellow gold, bronze, and copper match the skin warmth. Silver and white gold make the skin look dull and unwell, so use them sparingly or not at all. For hair, dark brown, copper brown, and chocolate brown are the staples. Heavy bleach into ash territory clashes badly with this skin.
A common Autumn Warm mistake is reaching for a bright pink lip. Pink-based lips clash hard with this skin tone and make the face look pale and sick. Stay strictly within the orange / brown / deep red trio — that is where the intellectual, expensive read of Autumn Warm comes alive.