I found a
website that converts RGB to BeamNG.Drive values. then I looked for one to convert Forza to RGB, and found this:
RapidTables - Color conversion
This is "Blu Dino" from the spreadsheet:
View attachment 1067631
View attachment 1067632
View attachment 1067633
The metallic/clearcoat shine is from a different custom color I had created, I copied it to create the new one, on BeamNG's "game-settings-cloud.ini" file, located in the "[current version]\settings\cloud" folder in the user directory (mine I set to My Documents, but I think from a recent update, it now is in a diferent place by default)
I wanted to make "Blu Dino Met." from the 512BB in Gran Turismo:
(play and immediately pause).
EDIT: 2nd and 3rd pictures.