Source: What to do in your 20s? https://www.instagram.com/all.about.20s/p/C-AI9kUp12j/?igsh=ZXp3bTcxZ3A2d2h4 Make a zero shape with your hand and place it on top. For me, it came out as a warm tone right from the first try. Personal color is likely divided into more detailed categories, but I wanted to introduce this because it is a simple way to test.
