While it's unarguable that Inter's 1st and 2nd colour is the famous black & blue yellow and white are also fundamental colours to Inter. If you look at the badge, yellow is the colour used to make the 'FCIM' & star(s) logo. Yellow has also been the colour of our away jersey last season and the 3rd jersey for many seasons. However, white is used in our logo to write our name 'Inter' and the year in which Inter was born, '1908'. White has also been the colour for our away jerseys for the last few seasons (Or maybe forever) bar last season.
So, what do you think is our 3rd colour? White or yellow? I think yellow is but I like white much more than yellow.