
A recent research seemed to show color preferences of waitresses in restaurants as customers seemed to tip waitresses at least 26% extra if they wore red.
Of course the tips varied differently among sexes with male customers tipping the ladies much more.
Men tipped the waitresses at least 15% more if they wore red as compared to the same waitress wearing a different color.
The researchers wrote: 'As red color has no negative effect on women customers, it could be in their interest to wear red clothes at work.'
Source: Medindia