Darker colors are much easier to match than lighter colors. Below is something that was posted in another thread that may help you with your conversations with Ford. They've admitted there is a problem with the paint on hoods and now warranty them for five years:
Thread title:
Aluminum hoods now covered for 5 yrs, unlimited miles
"Not sure when this started but found this posted on the Ford site I belong to in the 2016 warranty guide.
https://www.ford.com/resources/ford...ck-Warranty-version-1_frdwa_EN-US_03_2015.pdf
"
If aluminum body panels have corrosion or rust damage, and the damage is not the result of abnormal usage, vehicle accident, customer actions and/or extreme environmental conditions, the corrosion or rust damage repairs are covered for 5 years, unlimited miles."
Sounds like it took them five years to find or admit to this problem and I don't doubt based on complaints and now they are covering the hood paint only going forward? A mistake is a mistake and it sure seems like this warranty should be retroactive back to 2011, for those owners that have corrosion or rust damage, assuming no abnormal usage occurred.