There were 3 packs of detergent. One in a blue pack, the other in a yellow one and another in a multi colored one. Users found that the one in the blue pack was too mild, whereas the one in the yellow pack was too harsh on the clothes. The remaining one was found to be good.
Actually, all the packs contained the same detergent!
That is how colors affect our lives! Personally, I have always opted to use detergent powder that is blue or white in color. When I have juice or soft drinks, I usually avoid blue colored drinks. It gives me a creepy feeling. I have never tried the blue colored Pepsi for one thing!
Note: I read this in a newspaper ages ago about a research conducted on how colors affect the way we think.