Harry,
I did not mean to convey that any federal yellow and any off white would work. I was just stating that the correct shade would almost be impossible to duplicate.
As the links that David S. posted show, there are different shades of yellow and white even from IH themselves on different models of cubs.
I like to keep things as close to original as possible, but cannot always do this.
For instance, the Case IH Irongard 901 white is NLA.
935 white is all that is available, so I am going with that, so all my tractors and implements will mostly match.
At least the paint I use will have a IH on the can. LOL!
As I stated earlier, even the exact same color and brand of paint will vary ever so slightly from one lot number to another.
As long as I can, I will always use Case IH Irongard (quart can) on everything I paint.
Some people prefer other brands such as NAPA, PPG, and others which is fine if you have a lot of money and time.
I prefer the Case IH, because I can go get it already mixed and ready to go.
I did try NAPA once for some IH 901 white.
They looked at me like I was crazy, and said they had no idea what I was talking about.
They said if I had a sample of the color, I could take it to the main napa store in Greensboro and "maybe get a close match" for about $60 to $90 bucks a quart! No thanks.
The correct color for the O, 70, and 100 is IH 901 white and IH 483 yellow.
The 901 is NLA, and the Case IH yellow does not say "483 Yellow", only "Federal Yellow."
The 935 white and federal yellow is the closest thing I can get under the IH name, so I will stay with that for as long as it is available. Just my preference.