cadian troops colour scheme

[firephinix]

im doing a couple of squads of cadians for my ultramarine army and not sure what colours to use. i want them to tie in with the army. i was thinking of doing the colour scheme thats on the box and just paint one sholder pad ultramarine blue, just something subtle like that. any other ideas please?

 

[rolling thunder]

if: they are a guard unit attatched to the Ultramarines you could get away with maybe a blue stripe either down a shoulder pad or along the centre of the helmets.

if: they are a sort of imperial guard regiment garrisoned on a homeworld or shrineworld you could go a bit further and have a full blue shoulder with a small Ultramarine symbol alongside thier own colours.

I guess its all down to the fluff and what you feel you want from the unit. personally id do the garrisson idea just to get more identity across