Thanks! I was thinking they were finished in "Dark Blue" and/or "Electric Blue" after seeing this page copy from a PRS manual, listing standard and custom colors for CE Bolt-On and CE Maple Top models, from 1989.
Check out my avatar pic as I have an 89 custom 24 with birds with a natural back and neck. Its all original and I paid less for it than some S2 models!!!' It was a great find and I'm currently chasing an 86 whale blue cu24....
Bought new in '91 https://twitter.com/PlaidBlack/status/1119816988782514176 '91 Special, +birds, +gold hardware, +metal-flake blue