100% navy, not grey. I saw other reviews saying blue but I thought probably bluish hues -- NO! It's totally navy and not like the pic. I have now had to incorporate blue into my design plan. 
See contrast in attached pic. Also, note its really very hard. I still love it, not returning, and it is actually really comfortable for me to recline in, but if you're looking for plush n cushy (or grey), this is not it. Easy enough assembly, did it alone