I tried several from Krylon and Ace. They just didn't match very well.

I needed some to spruce up a deck after a weld job and was in the same boat. Old Cat yellow got me close enough for that project- I think at H Depot.

Cub yellow #2:
788L04021-QT
788S04021
788T04021
Old Cub yellow
788-0498A
Cub yellow #99
759-3940

I was just at HD. They didn't have any 759-3940 and couldn't/wouldn't order it. They did mention the cat yellow. Maybe I'll try that along with the list from ajay. Thanks to all.