How it works, and its limits

Hue & Line gives you two suggestions, a style line and a color season, each with a runner-up, a confidence level and the evidence behind it. Here is exactly what goes into them.

Your lines

The line system is based on David Kibbe's current ten-identity framework (Power of Style, 2025). That version dropped the old quiz and starts with draping fabric over your shoulders. We follow that spirit: the strongest evidence is what you see in your own mirror.

What counts, strongest first

Two at-home tests. The drape test (a scarf over your shoulders: does it fall in one long line, sit wide, follow a curve, hang evenly, or break into angles?) and a fit check with your most fitted top.
Ten fit questions. How blazers, rigid jeans, wrap dresses, oversized knits, belts and lengths actually behave on you. Our own questions, not the 1987 quiz.
Your height, as a hint. Kibbe's rule of thumb treats 5'6" and taller as vertical-dominant. We treat it as a strong hint, not a gate, because line is more than height.
On-device measurements. Your browser finds body landmarks and an outline (MediaPipe) and computes a few ratios: leg to torso, shoulder to hip, waist definition. Nothing about this leaves your phone except the ratios.
One AI photo read. A downscaled copy of your full-length photo, with your face pixelated, goes once to a small Claude vision model, which rates six line qualities with its own confidence. It can't see bone structure, so it counts least.

Each piece of evidence nudges six qualities: vertical, sharp, broad, balanced, compact and curved. We compare your combined profile with each of the ten lines, turn the distances into percentages, and show you the top two. We cap the confidence when the evidence is thin, for example when you skip the photos or the exercises.

Your colors

White-paper calibration. Phone cameras shift skin color. You hold plain white paper beside your face, tap it, and your browser corrects the photo so the paper is neutral.
Drapes on your own face. Six side-by-side pairs testing warm vs cool, light vs deep and clear vs soft. In an independent comparison of color tools, the ones that let people compare colors on their own face did best, so your choices carry the most weight.
A few questions about your natural hair and eye color, metals, black and white.
The AI read of the calibrated face crop: undertone, depth and clarity, with confidence.

The limits, plainly

Photos can't show bone structure, and pose, lens and clothing all distort proportions. David Kibbe himself says photos deceive.
Even after calibration, screens and cameras aren't color-accurate. Check your palette in daylight in a mirror.
Style systems describe tendencies, not rules. If something you love sits outside your result, wear it.
When your evidence is split, we say so and show both options instead of guessing.

Privacy

Photos are never stored. Measurements happen on your device. We never make a face template, never store face geometry, and never match your face against anyone, including the people named as examples. In Illinois, Texas and Washington, no photo goes to any server at all. Read the privacy notice.

Hue & Line's line system is based on David Kibbe's Power of Style framework, used only to describe the system our report references. Hue & Line is not affiliated with, endorsed by, or connected to David Kibbe. Results are AI-assisted style suggestions, not a professional consultation.