Color, as we know them, are a human interpretation of wavelengths and one we know is semi-subjective based on things like color blindness. A creature with less

Color, as we know them, are a human interpretation of wavelengths and one we know is semi-subjective based on things like color blindness. A creature with less sensitive receptors could see one color were we'd see a much wider range. The reverse is also true that a creature with more sensitive receptors could see far more colors than we do.