Orange is the color of the second chakra (energy center) located in the genital area.  Orange has many things in common with red.  It is a warm color, an exciting color.  Like red, it is a materialistic color.  Orange is used to grab our attention as in traffic warning signs and electric flares.
    People who's strongest energy center is orange will likely be very materialistic, but particularly in a sexual way.  They will tend to want to have sex a lot and value sexual relationships much more than platonic ones.  I suspect that most porn stars are strongest in the orange and red energy centers.  Orange is considered a color of nature (brown is a form of orange) and people strong in orange are also likely to be interested in nature and outdoor activities.  Orange people have a strong sense of self and are not afraid to express their opinions.  They are often good samaritans and good public speakers.
    People who have a weak orange center will have a weak sex drive, possibly even impotence or a lack of interest in sex.  They will place greater value on other things depending on which of their energy centers are strongest.  They will likely be introverted to some degree.
    If you are weak in orange, you can strengthen your orange center by eating orange food, wearing orange or brown chothes and orange or brown gemstones or crystals. 

As always, the best thing is to have balanced energy centers.  Too much energy at either end of the spectrum results in a distorted personality to some extent.