Here is a good explanation of describing colour with langauge to a blind person, not mine I might add:
"Different wavelengths of visible light have different colors, and mixtures of light of different wavelengths have different colors. A blind person can feel the thermal energy deposited by light, and so can be convinced that light exists and carries energy. Then it is just a matter of description of what light is and its properties. I'm afraid that for a blind man this may remain abstract and unverifiable, and he may just have to take his friends' word for it all."
There are quite a few online discussions about this subject of the blind and colour.
A further thought, if imagination was limited then concepts outside the acquired knowledge of the day such as the "higgs boson particle" would forever remain undiscovered... as would the wheel.