All Ryuken units paint their BattleMechs charcoal gray. The Ryuken-ni MechWarriors accent their ‘Mechs in silver, sparingly applying the color along sharp edges to imitate the edge of a blade.

Per FM:Draconis Combine, page 126.

Other references:
Bishamon, Kage BA, Combat Equipment Guide (color plate 4)
Mad Cat II, Phoenix Hawk IIC, Total Warfare (p.38)
Hunchback, CM: Kurita (p 104)


Insignia:

The Ryuken apply the Kurita dragon crest to their BattleMechs on the left leg just above the knee and near the exhaust ports of fighters. The Ryuken insignia is a dragon curling around a Katana sword, both drawn with rich detail. The regiment’s insignia, displayed on each ‘Mech’s head is a fierce-looking feline head wearing a Japanese-style kabuto helm. Per FM: Draconis Combine, pages 126 and 127.