Rakdos - Red Black
Orzhov - White Black
Dimir - Blue Black
Golgari - Green Black
Azorius - White Blue
Simic - Blue Green
Izzet - Red Blue
Gruul - Red Green
Boros - Red White
Selesnya - Green White
Then for 3 colours
Jund - Green Black Red
Naya - Green White Red
Grixis - Black Red Blue
Esper - White Black Blue
Bant - Blue White Green
Junk/Necra/Abzan - Green White Black
BUG/Sultai - Black Blue Green
Patriot/America/Jeskai - Red White Blue
Italia/Borzhov/Mardu - Red White Black
RUG/Temur - Red Green Blue