The colors I used when I did my nails were very similar so they blended well. It created a mulit-dimensional look to the nails. However, if you wished, you could use a light and dark color to create a more obvious split down the center.
First I painted my nails with the lighter of the two colours. After that had mostly dried I painted one half of my nails the darker colour.There was no tape used, only a steady hand.
Sally Hansen Blue It and NYC West Village.
