how would you describe color blue to a blind person

well.. it would be like describing quantum mechanics in kindergarten.. like a dog chasing its own tail.. it would never catch up with it... dunno..but i was under the impression that blind people could dream about colorful things.. even though they wouldn't be able to recognize blue they might see some brilliant shades in their dreams.. i like to think so..

Blue is cool water splashing over your face on a hot day. Blue is the softness of velvet against your skin. Blue is the tranquility of evening, when the sounds of busy man fade and only the sounds of nature reach the ear. Blue is not thin, like a blade of grass but soft and thick, it's a barrier of peace that surrounds you but never smothers. Blue is not pushy or forward, like red or yellow, never forces itself upon you, but is there to be discovered as baby birds leaving the nest discover the sky. Blue is the breeze that blows sweet and cool on your neck and whispers dreams into your slumber.

Not sure thats one hard question if they have never seen the color before.

I would probably ask them to "visualise" the 'colour' that comes to their mind when they think of tranquility, but that would probably not work, since we have been preconditioned to accept the colour blue as the associated traits