I found this on Team Camaro. This is probably what you paint supplier needs. I registered at the DuPont site and hopefully I can find the info for you and other colors if need be.
I used DuPont paint when I painted cars back in high school.
The boys at Acklands prepared the paint as I waited back in the 80's.

Here are the Dupont Formulas: (5030K Lemans Blue, 5033K Dover White)

5030K
CHROMABASE BC
GENERAL MOTORS CORP 71 69-69 LEMANS BLUE
MIX THOROUGHLY SOON AFTER WEIGHING
METALLIC/IRIDESCENT CONTENT > 5 GRAMS/LITER
MIXED BY: Classic Performance & Restoration 7/5/2006
Tinting Guide
Mix Size: Pint
826J ORGANIC BLUE 47.5
827J BLUE 80.3
807J LS BLACK 106.0
811J MED ALUMINUM 123.1
802J LS WHITE 125.9
150K B/C BALANCER 368.6
175K BINDER 430.0
© 2000-06. E.I. du Pont de Nemours and Company. All rights reserved. ColorNet® software program
7/5/2006
MIXED BY: Bill Wood ** MSDS LEAD-FREE ** RO # Cust: © 2000-06. E.I. du Pont de Nemours and Company. All rights reserved. ColorNet® software programData Version 1189

5033K
CHROMABASE BC
GENERAL MOTORS CORP 50 69-70 DOVER WHITE
MIX THOROUGHLY SOON AFTER WEIGHING
MIXED BY: Classic Performance & Restoration 7/5/2006
Tinting Guide
Mix Size: Pint
801J HS WHITE 142.3
807J LS BLACK 145.6
890J TRANSOX YELO 147.4
884J LS RED OXIDE 147.6
150K B/C BALANCER 431.9
175K BINDER 479.7
© 2000-06. E.I. du Pont de Nemours and Company. All rights reserved. ColorNet® software program
7/5/2006
MIXED BY: Bill Wood ** MSDS LEAD-FREE ** RO # Cust: © 2000-06. E.I. du Pont de Nemours and Company. All rights reserved. ColorNet® software programData Version 1189