The standards is:
http://www.shipbucket.com/forums/viewto ... ?f=18&t=16
5.1 Colors
- Second basic line color (dark grey): #7D7D7D or RGB 125,125,125
- "Black" areas on the hull or on outwardly-sloping surfaces: #292929 or RGB 41,41,41
- "Black" areas on the superstructure or on inward-sloping surfaces: #3D3D3D or RGB 61,61,61
- Railing: #AEAEAE or RGB 174, 174, 174
- Windows: #1873FF or RGB 24,115,255
- Propeller Yellow: #FFFF00 or RGB 255,255,0
- Hull Red: #FF0000 or RGB 255,0,0
- Hull Shading Color: #A04000 or RGB 160,64,0
But I would say, when you have drawn some numbers of drawings and know how a hull looks and how lights affect it's shading then you can go for the modified SB colors that many is using.
But this is more to the admin to say if you can or not.