Jim, harvest gold can be a difficult color to complement. A few years ago a friend redid his kitchen and wanted a "modern retro" design (70's look, with modern functionality). He experimented with harvest gold, coppertone and avocado appliances, and eventually decided to go with harvest gold.
He tried many different wall paint colors and wallpapers, coutertop surfaces and floor tiles etc, and it took him almost a year to come up with a design he was happy with. I'm going from memory here, but for wall color I think he tried a light shade of pink, purple, sage green and off-white, with the pink looking the best by far. His backsplashes were weathered brick veneer and the cabinets were a medium oak with antiqued brass hardware.