Subject: Why do some colors get hotter than others when you shine a light on then?

I am doing an experiment for the science fair.  I took 8 different colors of 
construction paper and put them one at a time under a 60W light bulb.  My dad 
lent me a temperature data logger from his work, and I logged the temperature 
of each color for 1/2 hour.  I got the result I expected, black got the hotest 
(about 98 deg.) white the coldest (about 89 deg) everything else was between 
these.  That agrees with what I always heard, but I can't find a good 
explaination of why. Can you help?

Re: Why do some colors get hotter than others when you shine a light on then?