Daylight tests for an uncertain undertone

Lucyon

I have a hair appointment soon and want to settle a palette question before choosing a shade. One quiz put me in Deep Winter; another suggested Deep Summer. The difference seems small on screen but noticeable when I hold clothes beside my face. In daylight, black looks fairly strong on me, yet some cool muted colors also seem comfortable. I do not want to treat a camera result as a final answer because the room lighting and automatic white balance change the appearance of my skin. I have started comparing a few pieces I already own rather than buying a full new wardrobe. I am looking at whether clear jewel tones or softer cool shades make my eyes look more defined, and whether either group emphasizes shadows under them. For the hair decision, I would like to bring a few specific color references instead of just naming a season. I found a page about color analysis while sorting out the terms, but I would value observations from people who have compared these two palettes in person. Would you test fabric near the face first, or is there another simple check that helped you decide? I can postpone a permanent change if needed. Practical checks would be very helpful. I will bring color samples to the appointment. Thanks for any advice from your own experience.