Start with the yellow first, then add brown until you get the amber done. Brown will tone the yellow fairly quick so add a drop of brown at a time. When it gets close and you want to add a hair more color you can dip a toothpick in the colorant 1/4" and stir it in. Same with adjusting the other colors.
On that bottom color of the laminate maybe make a smoke with plain clear plastic and a couple drops of black. Once you get a medium smoke just add the brown a drop at a time. Remember, the bottom color is going against a fairly dark color and it won't have to be a solid dark color itself. A liitle transparency in the bottom color is needed to get the final color to match the factory bait.