Here is part of the story from a 1957 Master parts. Trim Codes 42 &43 are Blue. The following instrument panel,door and door quarter panels and ash tray retainer were Duchess Blue (dupont 1267) on the face,and Persian blue (dupont 1269) on the inserts. THe winshied garnish ,door garnish &front door window divider were Duchess blue. THe steering column jacket,covers, horn ring hub and spokes, and transmisson shifter carrier,hydromatic dail retainer, signal switch housing,,and cluster housing are also all Duchess blue.
For the soft goods you will need a 52 to55 book. Warren