Go to the Oracal website, and look through their on-line color chart, not as perfect as comparing actual color samples, but will get you close.
Determine what brand you plan on using and order the FREE color samples to have on hand for the next job.
My monitor calibration and ambient room lighting will be different from yours, so I can only make a general recommendation:
Lawn Tech green looks like it could be Oracal 751
064 yellow green, or 063 lime-tree green.
Sorry, I can't be more precise, as others have mentioned, because our monitors are not calibrated, there is NO WAY, what I see on my monitor would match the green you see on yours.