| | 1936 Dr. Fényes | 1966 Dr. Balassy | 2000 |
| COLORS | Black, Blue Merle, Brown Merle, all other colors except tri-color and big black patches on white background with defined edges 1937 - all solid and merle colors | Black, White, sometimes many colored, pied (black-white) or white-black, multicolored with evenly distributed spots, pepite 1992 - MEOE allows brown color | Black, Blue Merle, Ash, Brown, White and Fakó Presently no brown merle or ashbrown (graybrown) but these colors are shown and allowed to be bred and registered as accepted colors in Hungary. |
| SIZES | Males 40-50 cm Bitches 35-45 cm and 30-50 cm as a whole breed | No Sex difference made 35-47 cm | Males 41-47 cm (Ideal 43-45) Bitches 38-44 cm (Ideal 40-42) |
Dr. Fényes, the founder of the breed wrote in 1937, every color is allowed, it can be ash (gray), fakó (yellow), red (with red nose), brown (with brown nose) or any other solid color or merle.
1966 - Dr. Balassy was given the task to re-write the standard given his ideals for the breed and what he found left of it after the wars. As he only examined less than a handful of dogs by his own words, these are what he mostly based his standard on. His interpretation of the merle color and the following translation of it left much to be desired as you can see and partly why the standard was re-written in 2000.
The weights vary according to each dog given bone and muscle content, these are the minimum sizes and to be used only as baseline information. (No Mudi is ever weighed in the conformation ring or the breeding exam.)
It is the AMA and Americans belief that a Mudi should look like a Mudi, not a Border Collie, Australian Shepherd, Belgian Malinois, Doberman Pinscher or Keeshond. These breeds allow tri patterns, masked, black and tan, brown and tan, wolf and irish spotting patterns, the FCI and AMA Mudi Standard does not. The properly colored merle is the only allowable pattern and solid colors are the only accepted colors.
