Associate/salesperson/makeup advisor sees brown eyes. Might mean warm. Red hair confirms it. Out comes yellow foundation.
True Winter and True Summer lipsticks exist on a continuum. There is movement between them. The True Springs and Autumns are totally different in cosmetics, except perhaps the odd brown eyeliner.
There is no reason to believe that foundation can be matched by Season, because the final colour is influenced by the overtone, the undertone, the idiosyncrasies of the face, the pH of the skin, and the list goes on for an hour.
Hair colour? You can take someone back 10 years with hair alone. And of course it matters to final presentation, good heavens. It is simply just not required for an accurate analysis. The skin tells you all you need to know once you know what to look for.
This higher-than-usual contrasting True Summer can also wear bigger jumps from skin to lip colour, wearing her darker tones in the daytime very easily. She wears a near-fuchsia blush well, as Avon mark Dollhouse, which will read as too sharp, pink, and candy on a more blended True Summer.
The makeup is not necessarily dark, though it is compared to Light Spring. Every Season has light colours, here as parsnip, lemongrass, asphalt, greige, goldenrod, barley gold, and many others.
If they applied 5 foundations and chose one, there’s a much higher chance of getting things right. Since they haven’t a clue about your heat by looking at you, I hope they used a selection of colours all the way from pure cool to pure warm, not available from most foundation companies.
A Light Summer can wear black at times DEPENDING on what the contest is. Her skin likes the saturation and the coolness. If the comparison is with Autumn, her skin might find several things in black to like. Now if the comparison is between black and silver, there may still be good stuff happening in black but less so.
Wear a neutral gray and tie your hair to choose the colour. Deciding your Season or your foundation by looking requires the consultant to take what they think they see, and make more. If what they think they see is correct, great.
You don’t have drapes. Or anything else for the skin to react to. Of the many companies out there offering PCA services, I would have to hope that if we agree on one thing, it’s that the ‘analysis’ part of PCA refers to the evaluation of simultaneous contrast effects. That word, contrast? By definition, it means between two things.