Does Obito Have Susanoo?

Obito never awakened the MS while he had both of his eyes in his eye sockets, hence he wasn't able to use Susano'o in the series. The only time he could potentially been able to was after Madara took his Rinnegan and gave Obito his other Sharingan.

Can Obito use Susanoo with one eye?

Madara never blinded his eyes meaning his body can use Susanoo. Because his eyes were physical, not created through chakra. And even if Obito had both sharingan, he needs to use both of his ocular jutsus to unlock the Susanoo, evolve his Susanoo to it's perfect form....

What color would Obito's Susanoo?

The Susanoo which belongs to both Obito and Kakashi is depicted in a light bluish/turquoise colour.