The 12 Colour Seasons Explained

From four seasons to twelve

If you already know the four classic seasons, the 12-season system will feel like a refinement rather than a reinvention. It doesn't discard Spring, Summer, Autumn and Winter — it divides each one into three, giving twelve narrower categories that describe real colouring far more precisely. This is the approach used in the Sci\ART method developed by Kathryn Kalisz, which treats colour as measurable properties instead of loose 'types'. The jump from four to twelve rests on a single idea: seasons flow into one another, so any season can lean towards a neighbour without ceasing to be itself.

The three axes every season is built from

Every personal palette is pinned down by three properties of colour. The four classic seasons are decided mainly by the first two; the 12-season system uses all three, and that is what creates the extra precision.

• —Temperature (warm to cool) — whether your colouring has a golden, yellow base or a blue, pink base. This is the primary divide: Spring and Autumn are warm, Summer and Winter are cool.
• —Value (light to deep) — how light or dark your overall colouring is, from pale, low-contrast features to rich, dark depth.
• —Chroma (clear to soft) — the intensity of colour that flatters you, from bright and saturated (clear) to gentle and greyed-down (soft or muted).

The flow dimension: true seasons and their neighbours

Here is what turns four into twelve. Inside each classic season, one sub-season is the 'true' version — the purest expression of that season's dominant quality. The other two each pick up a second quality that pulls them towards a neighbour: one lighter or softer, the other deeper or brighter. That secondary pull is the flow. So Spring becomes Light, True (Warm) and Bright Spring; Summer becomes Light, True (Cool) and Soft; Autumn becomes Soft, True (Warm) and Deep; and Winter becomes Deep, True (Cool) and Bright.

The twelve seasons, one line each

Grouped by parent season, here is each one in a single line.

• —Light Spring — warm undertone, light depth, softly bright: suits delicate, sunlit colouring that leans towards Summer.
• —True (Warm) Spring — warm undertone, medium depth, clear and fresh: suits obviously golden colouring where warmth is the strongest note.
• —Bright Spring — warm undertone, medium depth, high chroma and contrast: suits vivid, clear colouring that borders on Winter.
• —Light Summer — cool undertone, light depth, gently muted: suits ashy, low-contrast colouring that leans towards Spring.
• —True (Cool) Summer — cool undertone, medium depth, soft: suits blue-based colouring where coolness is the strongest note.
• —Soft Summer — cool-neutral undertone, medium depth, very muted: suits blended, greyed colouring that borders on Autumn.
• —Soft Autumn — warm-neutral undertone, medium depth, muted: suits soft, low-contrast golden colouring that leans towards Summer.
• —True (Warm) Autumn — warm undertone, medium-deep, rich and muted: suits coppery, earthy colouring where warmth is the strongest note.
• —Deep Autumn — warm undertone, deep, muted-to-rich: suits dark, warm colouring that borders on Winter.
• —Deep Winter — cool-neutral undertone, deep, clear: suits dark, high-contrast colouring that leans towards Autumn.
• —True (Cool) Winter — cool undertone, deep, clear: suits blue-based colouring where coolness is the strongest note.
• —Bright Winter — cool undertone, medium-deep, very high chroma and contrast: suits vivid, icy-bright colouring that borders on Spring.

Sister seasons, and why most people live on a boundary

Because seasons share the same three axes, some pairs end up dominated by the same quality — and these are the sister seasons. They sit side by side, overlap heavily, and can wear many of the same colours, which is exactly why they are the pairs most often confused. There are six: Light Spring and Light Summer (both light); Bright Spring and Bright Winter (both bright); Warm Spring and Warm Autumn (both warm); Cool Summer and Cool Winter (both cool); Soft Summer and Soft Autumn (both soft); and Deep Autumn and Deep Winter (both deep).

This overlap is the practical heart of the system. Very few people are the textbook centre of a season; most sit close to a boundary, pulled towards a sister or towards another member of their own family. Working out which way you flow — a True Summer edging towards Soft, for instance — often matters more than the label itself, because it tells you which colours to lean into and which to wear with care.

Ready to put it to use? Browse the 12 colour seasons → or try the colour analyzer →