Crescent Hawks’ units are painted dark blue and gray, applied in a pattern similar to their parent Kell Hounds, with yellow highlights added.
The Hawks’ aerospace contingent, the Red Hawks, paint the wings of their fighters red.

Canonized by Jalphoenix on 8/15/2007.
Crimson Hawks per Shrapnel #1, page 86

Other references:
Awesome, CM: Mercenaries (p 108)