Different color comb meaning? 4 weeks old astrolorps

[furm]

All 3 chicks have a different color combs.. does this mean I have some roos?

 

[Sussex19]

Welcome to BYC!
They all look like pullets to me.
I'm not sure why some have different colour combs, but unless they are bright red it doesn't mean anything as far as gender.

 

[SilverBirds]

Chicks developing bright red combs at an early age are typically males. Different colored comes can just be an induvial trait, or a breed trait. They will all end up being red in the long run though (except in select breeds, such as Silkies or Ayam).