The Boys of Summer
The color scheme used on Rangers vehicles for parades is principally dark red, with arms (or turrets/rudders) painted black. The unit also uses gold highlights on the regiment's BattleMechs and Aerospace Fighters.
Per FM: Lyran Alliance, page 101.
The Rangers' insignia takes the form of a disc, upon which is a yellow sun in a blue sky, partly obscured by wisps of white cloud. The regimental patch is a gold disc forming a stylized sun. Per FM:Lyran Alliance, pages 99 and 101.