4
Lovibond 1915
Wilson 1905
Lacouture 1890
Babbitt 1878
Runge 1810
Grassmann 1853
Field 1877
Rood 1879
Itten 1944
Forsius 1611
Gregoire 1820
Newton 1704
Bourges 1918
Birren 1934
Hering 1878
Munsell 1905
NCS-SYSTEM 1979
Bezold 1874
Irozu-Mondou 1876
Kupka 1910