The yellow for the wings in the direction calls it Chrome Yellow and gives me a ratio of orange and yellow to mix. I went ahead and did some research on this. I ended up with a ton of different ratios to get the right color. But one I did like very much and this modeler used Tamiya Flat Yellow XF-3. This modeler also called it Insignia Yellow. This made me pretty happy, I have used this color on most of my models with the Finish and Romanian Air Force WWII color schemes and they do have that hint of orange in the yellow. So this is what I used on my Buffalo's wings.
Then the blue for the stripes and cowling was called True Blue. Here I winged it, used Tamiya Blue XF-4 and put in a few drops of Tamiya White to give me the color I was after.
The silver was done by spraying Testor's Gloss Metallic Silver from a rattle can. I also used this on the landing gears, wheel hubs, its gear doors, propeller and spinner. I love the way this silver goes on and how smooth it looks.
2 attached images. Click to enlarge.