Emotions getting linked with colors is nothing new. Sayings such
as “I feel blue” and “I see red” are commonplace but what about
the ability to smell color? Ridiculous? No, it’s scientific.

It’s called synesthesia, a rare neurological condition in which two or
more of the senses entwine. Only a few people have this weird
case thus making it RARE but REAL!!!

More information can be found HERE (LiveScience.COM).

So don’t worry if one day you suddenly smell the color Red as sweet or sour.