Interior Trim Codes

The interior trim color code is a 3-digit number. Those not checked under Bucket are bench seat styling.
There may be additional interior codes for Oshawa-built Chevelles as I have no source to reference.
Atlanta, Framingham, and Kansas City also included a -A or -B to denote bench or bucket seat. When optional headrests were ordered the -A or -B gave way to -S for bucket seats and -E for bench seat; Baltimore, Fremont, and Oshawa did not.

Code Color Bucket
704 Medium Fawn Raeburn Cloth, Imitation Leather  
706 Medium Fawn Rideau Cloth, Imitation Leather  
707 Light Fawn Pattern Imitation Leather  
708 Light Fawn Renville Cloth, Imitation Leather  
709 Medium Fawn, Light Fawn Imitation Leather  
710 Medium Fawn, Light Fawn Imitation Leather (El Camino only)  
711 Medium Fawn, Light Fawn Imitation Leather (El Camino only) x
712 Medium Fawn, Light Fawn Imitation Leather x
724 Medium Blue Raeburn Cloth, Imitation Leather  
726 Medium Blue Rideau Cloth, Imitation Leather  
727 Medium Blue Pattern Imitation Leather  
728 Dark Blue Renville Cloth, Medium Blue Imitation Leather  
729 Dark Blue, Medium Blue Imitation Leather  
730 Dark Blue, Medium Blue Imitation Leather  
731 Dark Bright Blue, Medium Bright Blue Imitation Leather x
732 Medium Bright Blue Imitation Leather  
742 Medium Red Raeburn Cloth, Imitation Leather  
744 Medium Red Rideau Cloth, Imitation Leather  
745 Medium Red Pattern Imitation Leather  
746 Medium Red Renville Cloth, Imitation Leather  
747 Medium Red Imitation Leather  
748 Medium Red Imitation Leather (El Camino only)  
749 Medium Red Imitation Leather (El Camino only) x
750 Medium Red Imitation Leather x
760 Black Imitation Leather  
761 Black Imitation Leather  
762 Black Imitation Leather (El Camino only) x
763 Black Imitation Leather X
775 Dark Turquoise Renville Cloth, Medium Turquoise Imitation Leather  
776 Dark Turquoise, Medium Turquoise Imitation Leather  
777 Dark Turquoise, Medium Turquoise Imitation Leather x
787 Medium Aztec Bronze Imitation Leather  
790 Medium Aztec Bronze Imitation Leather x
797 Ivory Imitation Leather X
798 Ivory Imitation Leather