Board Thread:Theories and Speculation/@comment-28316199-20160726212443/@comment-1872728-20160727094709

Based on the colours of all the Susanoo (except Hagoromo and Indra), their colours are taken from the rainbow:

Red: --- Orange: --- Yellow: Itachi Green: Shusui Blue: Obito Indigo: Madara Violet: Sasuke

So based on that, Fugaku could either be Red or Orange. But since Itachi's was coloured Red, Orange, and Yellow in the anime, I'm not sure anymore.