if he is born blind then its difficult to make him reconize 
the colour red.

il keep the blind person face under the sun rays by this 
the color of red he can imagine

same closing eyes

close your eyes and face the sun

he is blind but he can hear so i directly tel him that this 
is red color

we have to show red color apple

i'll let him face the sun.

go to red light and if no vencle is moving then it is red

let the person hold an object which is hot enough to hold or
feel

He is only blind not deaf, so he can hear i can directly 
tel him that this is red color

Blind person can imagine the description what we want to 
tell him/her about the colors description. Basically red 
color indicates love, emotions, distress,danger etc. Red 
color is also used at the time of wars. It also indicates 
the anger of the person.

I will describe like i will pinch him/her then i will tell 
him what you are feeling that is red color.

i will let him to decide by his own because he is the one 
who has to know what red is