Where are you judging the color at? In the primary, secondary, or in a glass after it has been fully carbed and conditioned?
It is really hard to judge the color of the beer, while looking at it in a bucket or through the thick glass of a carboy, due to refraction of light THEY ALWAYS appear darker (and we get plenty of threads like this, where later they look fine.)
Also your beer is going to go through so many processes in the next few weeks, that it may appear dead on down the line in your beer glass...and that is all that matters...
If it is carbed and conditioned, if it as extract batch, they do usually appear a little darker than all grain batches...has to do with carmelation of the liquid extract....look at late extraction additions as a cure for that...or consider, if you aren't ready for all grain, to do partiall mashes and try to get the most fermentable sugars from grain, then round our the recipe with late extract addition.
Hope this helps.