The paint on Steve's Duster was a custom blend he called "Mango..Something" it's not a factory color. In person it best matches the color of the Nash Bridges Cuda's (another non factory color from Sherwin Williams called "Hazard yellow"). At any rate, it's similar to Bahama Yellow (a factory color) but with more orange in it, if it's the factory color you seem then Bahama/Butterscotch Yellow is probably the color as mentioned above.