According to @evleaks, the Samsung Galaxy S9 and Galaxy S9+ will come in four colors: Midnight Black, Lilac Purple, Titanium Gray and Coral Blue. Yesterday we saw the duo in purple, today comes the blue version of the S9+.
We think we have the complete set. Renders by dbrand do a good job of portraying the black S9 duo. Then there are these renders (with a transparent case) that show off the gray one (courtesy of MyTrendyPhone.no). And for completeness sake, the purple color from yesterday.
Of course, Samsung would eventually end up launching a pink version some months from now, perhaps a red one too along with other colors.