If A Blind Man Ask You To Define The Colors Blue And Red, How Are You Going To Describe It To Him?

Blue is not something that you can sum up in four lines.
Blue must be seen. Blue must be heard. Blue must be felt.
The colour blue is something too beautiful to be understood through words. It can be soft like a baby’s skin or it can be deep and dark like a twilight shadow, hiding from the sun. In my opinion, you can not describe a colour through one sense, you have to use them all to fully taste its meaning.  It can often feel depressing. It can also feel calming.

Some describe the colour blue as to mean sadness. I would disagree.
Some describe it as to be relaxing. This, I would agree with.

Under the harsh light of day, you can be quickly soothed by slowly slurping on a waxy blue sky.
The sweet and delicate chirping of morning birds after a night of rain and mist is a pale blue. The piercing cry of a wolf at the blackest part of midnight is more of a royal shade, deep and lustrous. Everywhere you go, you taste blue. Blue is a glass of water on a scorching summer’s day. Blue is the crisp, clean air that whips your skin on a fresh winter morning. Who could say that blue is not amongst the greatest colours in existence? We are, after all, living on the ‘blue planet.’

Simple use is third sense like sense of touch sense of smell.

Have them smoke weed

Can never make him understood if he is blind since birth

It's impossible. Colors are entirely subjective sensory experiences, which means that you can't ever explain to another person what it's like.

As colors are defined only by sight, it is impossible to describe them to a blind man, however you can describe the feelings that you get when you look at a color.