Fischer–Saller scale
The Fischer–Saller Scale, named for Nazi eugenicist Eugen Fischer and German anthropologist, is used in physical anthropology and medicine to determine the shades of hair color. The scale uses the following designations:
| A | very light blond | |
| B to E | light blond | |
| F to L | blond | |
| M to O | dark blond | |
| P to T | light brown to medium brown – "chatain" | |
| U to Y | dark brown/black – "brunet" | |
| I, II, III, IV | red | |
| V, VI | red blond |