Imperial Stars

The Imperial Stars are another one of those name and color scheme Space Marine chapters of unknown founding and lineage found on the Insignium Astartes book, though it also says they have around 750 Marines and are Codex compliant. They have a pretty sweet insignia of three white stars forming the corners of an empty black triangle and color scheme that is purple with company color shoulder plate trims and with the Aquila being golden, empty center of triangle and the rest of the left shoulder pad is also purple and the right shoulder pad has Roman numeral with squad number in the squad specialty symbol surrounded by purple.

References

Fandom wiki page.

Their pretty sweet color scheme.