Reviewed by the Tonebook color team · Updated June 2026
Work through three axes: (1) undertone — warm, cool, neutral, or olive; (2) value — how light or deep your skin is; (3) chroma — how bright or muted your coloring is. Those inputs map to one of the 12 Sci·ART seasons. Start with the gold vs silver jewelry drape, then drape muted vs vivid fabric in natural daylight.
Seasonal color analysis — popularized by Carole Jackson's Color Me Beautiful in 1980 and refined into the 12-season Sci·ART system by Kathryn Kalisz — divides all human coloring into four families (Spring, Summer, Autumn, Winter), each split into three sub-seasons. Finding yours requires reading three axes of your natural coloring: undertone (hue), value (depth), and chroma (clarity). Work through them in that order.
Undertone is the hue beneath your skin's surface. It divides your possible seasons roughly in half: warm undertone points toward Spring and Autumn; cool toward Summer and Winter; neutral and olive can appear in either family but with muted chroma.
Run two tests back-to-back in natural daylight, bare-faced:
Olive undertone is a green-grey cast that sits over the surface and can appear on skin of any depth. It often reads as "neither gold nor silver works perfectly." Olive is a fourth undertone category and typically corresponds to muted, slightly warm-neutral palettes — Soft Autumn and Soft Summer are common homes for olive complexions.
For a dedicated deep-dive, see the undertone test guide and the vein color test explained.
Value is how light or dark your overall coloring is — not just skin, but your natural hair and eye color taken together. It's the axis that separates, for instance, Light Spring from True Spring, or Deep Autumn from True Autumn.
| Value zone | Skin range | Natural hair clue | Example seasons |
|---|---|---|---|
| Light | Fair to light-medium | Blonde, ash blonde, light brown | Light Spring, Light Summer |
| Medium / True | Medium | Medium brown, auburn | True Spring, True Summer, True Autumn, True Winter |
| Deep | Medium-deep to deep | Dark brown, black | Deep Autumn, Deep Winter |
In practice: stand in indirect daylight without makeup and compare your face to a sheet of pure white and a sheet of jet black. Are you clearly toward the lighter end of the human spectrum, clearly toward the deeper end, or squarely in the middle? "Light" and "Deep" are the minority — most people fall in the medium/true zone, which is why there are six "True" or borderless seasons.
Chroma (also called clarity or intensity) is the most subtle axis and the hardest to self-assess. It measures how vivid or muted your natural coloring is — not how much contrast you have between skin and hair, but whether your complexion itself looks clear/vivid or blended/dusty.
The fastest draping test for chroma:
Why chroma is the hardest step. Most people can read undertone and value fairly accurately. Chroma requires seeing your face shift in real time as fabrics change — which is why AI pixel analysis, which measures the actual saturation of your skin pixels, is often more reliable than self-assessment on this axis alone.
Once you've assessed all three axes, you have a candidate season. Confirm it by draping a signature color from that season's palette:
For tips on lighting and camera angle when doing this with a photo, see the selfie guide for color analysis.
Every season is defined by its position on all three axes simultaneously:
| Season | Undertone | Value | Chroma |
|---|---|---|---|
| Bright Spring | Warm | Light–Medium | Bright |
| Light Spring | Warm | Light | Medium-bright |
| True Spring | Warm | Medium | Bright |
| Light Summer | Cool | Light | Soft |
| True Summer | Cool | Medium | Soft |
| Soft Summer | Cool–Neutral | Medium | Muted |
| Soft Autumn | Warm–Neutral | Medium | Muted |
| True Autumn | Warm | Medium | Muted–Medium |
| Deep Autumn | Warm | Deep | Medium |
| Deep Winter | Cool | Deep | Bright |
| True Winter | Cool | Medium–Deep | Bright |
| Bright Winter | Cool | Medium | Bright |
Use this as a lookup after working through Steps 1–3. If two seasons share your undertone and value but differ on chroma, go back to the chroma draping test and be rigorous about the muted-vs-vivid contrast.
Once you have a candidate, explore its full characteristics:
The weakest link in DIY seasonal analysis is self-assessment bias. Most people slightly overestimate their own brightness (chroma) and misjudge their undertone under indoor lighting. Professional colorists solve this by using calibrated fabric drapes under controlled daylight — but that requires a trained eye and an in-person session.
AI color analysis solves the same problem by measuring pixel values directly from a photo — it doesn't ask you to judge your own veins or decide whether gold "works." The trade-off is lighting quality in the selfie: a photo taken under warm tungsten bulbs will have a warm color cast that can skew the read. That's why Tonebook uses lighting correction to neutralize the room's color temperature before analyzing undertone.
For a detailed look at how AI and in-person draping compare, see how accurate is AI color analysis.
Tonebook applies the full Sci·ART 12-season framework to a single selfie. Rather than stepping through each axis manually, the app reads undertone, value, and chroma simultaneously from your photo's pixel data, corrects for lighting, and places you in your primary season — then reports a runner-up season and a confidence delta so you understand how close the call was. The first analysis is free, inclusive across Fitzpatrick I–VI, and takes about 60 seconds.
One selfie. Tonebook measures all three axes — undertone, value, and chroma — and maps you to your Sci·ART season. Inclusive across Fitzpatrick I–VI. First analysis free.
Get Tonebook for iPhoneIndirect natural daylight is best — sit near a window on an overcast day or in open shade outdoors. Avoid yellow indoor bulbs (they warm every color), cool fluorescent tubes (they add blue), and direct sunlight (too harsh). If natural light is unavailable, a 5000K daylight LED bulb is a reasonable substitute.
Yes — and ideally you should. Makeup alters your visible lip and cheek color, which skews the draping test. Do the analysis bare-faced or with SPF only. The key inputs (undertone, skin value, natural hair color, and chroma) are read from your unmodified face.
Undertone is just one of three axes — warm vs cool. Your color season is determined by all three axes together: undertone (warm/cool), value (light/deep), and chroma (bright/soft). Two people can share the same warm undertone yet be different seasons — for example, Bright Spring (warm + light + bright) vs Soft Autumn (warm + medium + muted).
With good lighting and neutral clothing, DIY draping gives a reliable undertone read and a rough value/chroma estimate. It's less reliable than a trained colorist or AI pixel analysis because self-assessment of subtle chroma differences is difficult. Tonebook's selfie analysis cross-checks all three axes simultaneously from a single photo.
The 12-season Sci·ART system covers most people, but some fall near a boundary — True Spring vs Bright Spring, or Soft Autumn vs True Autumn, for example. That's why Tonebook reports a primary season and a runner-up season with a confidence delta rather than a single forced answer.
Natural hair color is a data point, not a rule. It's correlated with your season (e.g., ash brown hair leans Summer), but it doesn't override skin undertone or chroma. If you color your hair, use your natural root color or eyebrow color as the reference.