If your HR is like other Monaco products, it was shot with Sherwin Williams paint. I tried to match mine, but the colors were no longer in use by Sherwin Williams.
See if you have the color you need in the exterior refer door. If so, remove the refer door and take it to a paint shop and have them match it with their color matching machine.
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab