My mother was blind, but for most of her life she was sighted. As she lived without sight, she gradually lost her mind's eye. I took on the job, of trying to keep it alive. Every night, I would talk colors and vivid descriptions. We would start from a point of what she could visualize and try to add to it. For instance, if she remembered and could see a "fire" in her mind, I would talk about all the colors, blues, oranges, reds, whites, and then name other things that would be that color, like a red dress, an orange shirt, a firey sunset.
For one who has never seen, I would suggest reading more about Helen Keller, and how they described things to her, and research what they do for the blind in their special schools. I know they often go by feelings, like white and blue are cool, and red and orange are hot. Black is night/darkness, no sight, light or bright is hot.
I've seen remarkable paintings by the blind, not many can do it, but some "see" things even tho they have never seen. The mind is an amazing computer.
Being blind affects everything, your tastes, your hearing, your feelings, your mind. I grew up helping my mother see with her mind's eyes.