For the real beginner. You must first find out where the Macro setting is on your camera...
A white background and full spectrum light from outside will show the the truest color, but of course the viewers monitors are on different settings. You have no control over that.
The white background looks pink in this photo... The digital sensor is balancing the colors... don't ask me why... that's just how it works. A black background is good for some opaque objects with a light contrast... not too many things. You need to use the flash and the darkness creeps in along the edges... see the liquor bottle above.