Color Matching - Candy Ruby Red

I'm working on matching the Candy Ruby Red paint for my red SL90 project.  I'm using a the paint on the rear fender that did not fade (it was under the tail light bracket) and an after market headlight bucket to zero in on the correct color.  The undercoat (silver) really makes a difference in how the Candy Red top coat looks.  Here are photos comparing two candidates for the the project.