For paint, I wanted to use off the shelf colors. I tried Woods Paint in the past and was very unhappy with the quality, and custom mixing was not in the budget, so i took some of the parts that still had original paint to the Rustoleum and Krylon racks and started to compare. I think I came up with reasonable substitutes.
This one was only available in flat finish:
Picked the one on the right:
Original paint chip in the middle: