A practical way to compare cooler hair shades

Yesterday evening I finally cleared the clothes I never wear from my work wardrobe. I have light skin, naturally blonde hair, and cool blue eyes, so I expected the remaining pieces to work together fairly easily. Instead, anything close to warm beige makes me look oddly pink, especially under the lights in our office. Colours such as soft blues seem calmer, although I cannot tell whether that is a real pattern or simply preference. A recent photo in a dusty rose jumper made the difference noticeable enough that I want a sensible method before buying more clothes. I keep wondering whether I am reacting to my hair colour. To check the suggested ranges, I used <a href=https://find-hairstyle.top>cool summer hair colours</a> as a practical checklist. Now I plan to compare the same two tops in daylight before choosing between a muted green shirt. I am trying to keep the experiment cheap, repeatable, and practical. Is there a simple comparison that separates undertone from hair colour?