I dont know which Shadow mario is the right shade? I recall him being this dark shade of blue from the ingame gameplay back when I played the game, as far as my memory goes??.. but it seems the majority of the ppl making him has him as a light shade of blue..
(and when ever I google Shadow Mario, a light shade concept Art of him comes up)
(and when ever I google Shadow Mario, a light shade concept Art of him comes up)
Him being dark blue is the right shade since most the time, he appears like that.