(Dark Sapphire Blue : Chevrolet : 1987 - 1991)
At PaintRef.com we have records of this paint across 5 manufacturers/makes.

This blue automotive paint color is most commonly known as Dark Sapphire Blue. Another common paint color promotional name is Dark Blue. The color formulation has been used between 1987 and 1991, primarily by Chevrolet; but also by Buick, Cadillac, GM, Oldsmobile, and Pontiac. We have records of this color appearing on the model of Celebrity and Caprice. See the full detailed list below.

3968 is a paint code for PPG (Pittsburgh Plate Glass) who has been providing automotive paints since 1924 (originally Ditzler Color Company subsidiary acquired in 1928). PPG/Ditzler codes in the 2000 to 9990 range were primarily used on new paint formulations from 1969 to 2003 (except for the 8000 range which has been shades of white since the 1930's). These PPG/Ditzler codes serve as a great way to track the usage of paint between models, makes, years, and manufacturers.

Example of the color PPG 3968 See more information on PPG code "3968"

Usage list of PPG paint code 3968 (more information)

year	make	model	code	paint name	comment
1987	Buick	Buick	29	Dark Sapphire Blue
1987	Cadillac	Cadillac	29	Dark Sapphire Blue
1987	Chevrolet	Chevrolet	29	Dark Sapphire Blue
1987	GM		29	Dark Sapphire Blue
1987	Oldsmobile	Oldsmobile	29	Dark Sapphire Blue
1987	Pontiac	Pontiac	29	Dark Sapphire Blue
1988	Buick	Buick	29	Dark Sapphire Blue
1988	Cadillac	Cadillac	29	Dark Sapphire Blue
1988	Chevrolet	Caprice	29	Dark Blue
1988	Chevrolet	Cavalier	29	Dark Blue
1988	Chevrolet	Celebrity	29	Dark Blue
1988	Chevrolet	Chevrolet	29	Dark Blue	Caprice Celebrity Cavalier
1988	GM		29	Dark Sapphire Blue
1988	Oldsmobile	Oldsmobile	29	Dark Sapphire Blue
1988	Pontiac	Pontiac	29	Dark Sapphire Blue
1989	Buick	Buick	29	Dark Sapphire Blue
1989	Cadillac	Cadillac	29	Dark Sapphire Blue
1989	Chevrolet	Chevrolet	29	Dark Sapphire Blue
1989	GM		29	Dark Sapphire Blue
1989	Oldsmobile	Oldsmobile	29	Dark Sapphire Blue
1989	Pontiac	Pontiac	29	Dark Sapphire Blue
1990	Buick	Buick	29	Dark Sapphire Blue
1990	Cadillac	Cadillac	29	Dark Sapphire Blue
1990	Chevrolet	Chevrolet	29	Dark Sapphire Blue
1990	GM		29	Dark Sapphire Blue
1990	Oldsmobile	Oldsmobile	29	Dark Sapphire Blue
1990	Pontiac	Pontiac	29	Dark Sapphire Blue
1991	Buick	Buick	29	Dark Sapphire Blue
1991	Chevrolet	Cavalier	29	Dark Sapphire Blue
1991	Chevrolet	Chevrolet	29	Dark Sapphire Blue
1991	GM		29	Dark Sapphire Blue
1991	Pontiac	Pontiac	29	Dark Sapphire Blue

Paint Manufacturer Codes
GM(Fisher code) : WA8970
Make/Year Code : 29
PPG/Ditzler : 3968 (possible alternative codes: 2-1295)
Dupont : B8706
Spies Hecker : 93309
Sherwin Williams : 35866
RM/BASF : 17079, 17007
Glasurit : GM-8970, GM8970
Autocolor ICI Nexa : 8094M, 1AG7B, B598B

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