There are definitely 3 colours…
Maybe post a pic of your color pallet? I would vote for this!
(but without enlarge feature, it looks like only one shade of teal and white?)
3d5467 - the four lines on the syringe
While I agree it “looks” like one color, you had to use 3, with black or white as an option. So you only have 2 in there, because white (ffffff) isn’t part of the 3-color scheme.
Direct sub it!