Re: color of lipstic
First, almost anything can work for you. I would veer away from pale colors. But anything you are comfortable with is good.
Having said that ---- A safe bet for a darker skin tone is a nice burgundy type color... its often labeled as "vampy" but its actually quite neutral for a darker skinned lady
If you are new to makeup and lipstick... try Clinique's Black Honey... very subtle, but it has the type of coloring you will want to begin with I think. Then you can get bolder and do more.