You could say darkness, or shadows.
It is not very easy to describe a color to someone who is blind. I mean you can't even describe black and that is what they look at all the time.
You can use tints and shades of gray to describe White. Using black to shade and white to tint. Since black and white are neutrals and not colors, you can use them to describe the color white.
Most blind people understand the concept of color, so you can say what color the denim is. You should describe everything else that does not involve sight - how it feels, smells, sounds, and maybe even tastes!
I presume you mean 'a blind person'. Impossible to describe colours to a person who had been blind from birth.
You can't
You actually truthfully cannot explain a color to a blind person because it will only confuse him than help him. There are organizations that do help the blind with their technology for blind people.
In my opinion, black is the easiest colour to describe to a blind person. Ask the person what they see? When they answer nothing, that is the colour of black. Dark, unseeable. Or at least that is how I would describe it.
In order to describe the color gray to a blind person, it would be beneficial to connect it with one of the other senses. It may described as: the sound of footsteps on concrete, the smell of rain, the smooth texture of stainless steel.
you can't. but you can explain it to a patially colorblind person depending on what colors they CAN see.
You can say yellow is the color of the sun.It's bright,colorful,and smooth.
probably not <><><> First. communicate what SEEING is, then COLOR, then the color YELLOW. A comparison might be made to senses that the blind person has, such as hearing, taste, smell or touch.
Blue is the color of the wind on a hot day.