How would you explain colors to a person born blind?
I can see colors like you can hear different sounds with millions of different pitches and volumes, feel different degrees of warmth on your skin, and smell different smells. Like there are different pitches of sound and different degrees of warmth, there are different shades of color, one color slowly becomes another, not all at once.
Musician, Duke Ellington, claimed that certain piano notes would elicit a different color. For example, a D note would be a dark blue color. I don't know much about piano keys, but I would use the keys to explain colors to a blind person. A high key elicits a bright color, a low key elicits a dark color.
Mia lost her vision when she was young. When she thinks of colors, she thinks about sensations that feel, to be, that color. So we can explain colors as:
Pink — It is the delicate softness of flower petals, the unrestrained laughter of a child.
White — It is the sound of the wind blowing steadily through pine trees. It is the feeling of fine sand, sifting through fingers.
Gray — It is the feeling of the world after it has rained.
Yellow — It is the faint heat from the sun on a cool day.
And so forth…