In with Both Feet
The Brigade uses a tan color scheme with dusty purple highlights.
Per Mercenaries Supplemental 2, page 27.
Other references:
Grasshopper, Mercenaries Supplemental 2 (color plates)
Grasshopper, Mercenaries Supplemental 2 (front cover)
The unit’s logo is two “B”s, one blue-gray and the other purple, set upon a tattered tan field. Per FM: Mercenaries Supplemental II, page 27.