i went to lowes, and they matched it pretty close. i found these paint codes for lincoln machines,(older models-battleship gray)-(90's model-dupont centari-45832-A)-(current models-dupont centari-B-8012-A).
dam I wish I could remember umm JTMC he gave me the paint code for mine. I used the old original lincoln grey paint code. When I had the motor rebuilt the builder used a ford grey color which looks really good. I'll look tomorrow and see if the paint can says what number it is but this would be the paint code number for PPG paint and then I guess you would have to cross reference it to whatever paint you like.