Whenever I take photos of small objects I usually just place them on my desk under my desk lamp which has your standard incandescent bulb (75 watts). The resulting color representation requires me to fool around with my photo software to get the pics closer to the real colors.

My digital camera takes perfect photos in natural light - so the camera is not a problem.

My question is simply: Is there a bulb I can put in my desk lamp that will cure (or at least help) this problem ?

Please do not respond with solutions of making some elaborate studio lighting rig. Please stick to the basic question.