What color should my 69 340 be?

Have a late (5/69) 69 swinger 340. The closest to date correct (2/69) block that i have (out of 69 swinger) looks as though it was originally turquoise. Mabe assy plant has something to do w/ this? My vin is LM23P9B375??? Ive seen 69 swingers w red and orange 340s as well. I was thinking red but the turquoise looks pretty cool to. Thanks for looking, Kevin.