Do you think a troll could be colorblind? Like red-green or blue-yellow? Would this have an effect in their veiws of the hemospectrum because they can't see all of the different blood colors?

There’s a theory that Sollux’s is a type of colorblind which would explain why he doesn’t care about/understand the hemospectrum. (You can google “Sollux colorblind” to find some examples)