The Fischer–Saller Scale, named for eugenicist Eugen Fischer and German anthropologist Karl Saller, is used in physical anthropology and medicine to determine the shades of hair color. The scale uses the following designations:[1][2][3][4]
| A |  | very light blond |
|---|---|---|
| B to E | .jpg) | light blond |
| F to L |  | blond |
| M to O | _(cropped).jpg) | 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 |
Earlier scale
An earlier version of the scale created by Eugen Fischer, known as the Fischer Scale, used a different range of designations:[5][2][6]
| 1–3 | red |
|---|---|
| 4 | dark-brown |
| 5 | dark-brown / brown |
| 6 | brown / auburn |
| 7 | brown / lightbrown |
| 8 | brown / lightbrown |
| 9 | light-brown (sometimes in reddish shades) / some anthropologists call it dark-blond also |
| 10 | light-brown (sometimes in reddish shades) / some anthropologists call it dark-blond also |
| 11 | dark-blond / some anthropologists call it light-brown also |
| 12–19 | golden blond |
| 20–25 | ash-blond |
| 26 | dark ash-blond / some anthropologists call it lightbrown also |
| 27–28 | black |