Visual inspection should be combined with your actual situation, such as the size of your skeleton and the tightness of the meat.
Personally, I still feel fat, and I am a living example. I am as tall as you. When I was in college, my lightest weight was 76 kg, and I was really thin (basically everyone who met me would say that this sister paper was too thin. At that time, I felt my legs were beautiful, slender and tall. After graduation, when I was the fattest, I weighed 90 pounds, just like you. Personally, I still feel a lot fatter than before, my back and waist. There is a lot of meat on the legs. Especially the legs, there is no beauty at all. I'm a little thinner now, about 85. Personally, I still feel that there is meat in my waist and legs. Generally speaking, I think 80 kg will be more suitable.