The 4-season system sorts you by undertone and one quality; the 12-season splits each into three, and 16 seasons only refine the borders. Both systems answer the same question — which colours suit you — at different resolutions.
The 4-season system
The original system uses two ideas: your undertone (warm or cool) and whether you suit bright or muted colour.
- Warm + bright → Spring
- Cool + muted → Summer
- Warm + muted → Autumn
- Cool + bright → Winter
It is quick and hard to get badly wrong, but a single “Autumn” palette has to stretch from someone with light golden-brown hair to someone with near-black hair. That is a lot of range for one set of colours.
The 12-season system
The modern system keeps the four but asks a second question: within your season, does your colouring lean light, sit true to the season, or lean toward the neighbouring season (deep, or bright)?
That splits each season into three:
- Autumn → Soft Autumn (borders Summer), True Autumn, Deep Autumn (borders Winter)
- and the same pattern for Spring, Summer, and Winter.
Now the light golden-brown person is a Soft Autumn and the near-black-haired person is a Deep Autumn, each with a palette built for them.
What about 16-season color analysis?
You will also see 16-season color analysis (and 20- or 24-season) offered by some analysts. These add extra sub-divisions between the twelve — for example splitting the gap between True Autumn and Deep Autumn — so that people who sit on a border get a named box of their own. The theory underneath is identical: undertone, depth, and clarity. In practice the twelve seasons plus a note of your nearest neighbours cover the same range for most people, which is why the free color analysis reports your second- and third-closest seasons rather than trying to slice the wheel sixteen ways. If your result is genuinely borderline every time you run it, that is the case where a 16-season system — or an in-person session — earns its keep.
Which to use
Use both, in order:
- Four seasons to find your half of the wheel — warm or cool, bright or muted.
- Twelve seasons to pick the sub-season whose depth and clarity match yours, and take your palette from there.
The free color analysis returns a 12-season result and shows your second- and third-closest seasons, so you can see which border you sit on.