These are Harley Davidson Colors offered from the factory as Options.
Harley Davidson 60s Optional Colors
Harley Davidson 70s Optional Colors
Harley Davidson Optional Colors Including Police, Shriner, and Other
Harley Davidson Optional colors Without a Year
Regarding Optional Colors:
We have found that once a color is made available,
from that point forward it is available as an optional color. Further, We have
found several shades of the same color varying by the paint manufacturer,
Birch White has been supplied by Wurdack, Cook, DuPont, PPG,
and Midland. All vary slightly in hue. We Have all five variations.