Maybelline has a new 18-shade, gel-liquid foundation line with an interesting concept behind it. A bunch of color-compatible face products like powder and blush are categorized by skin tone (foundation shade) for easy shopping… there's an interesting video about it here.
Here's an idea of the range of colors from the second lightest (#120) to a medium (#220) to the second deepest (#355) of 18 shades:
These go on smoothly, but they were really hard to remove! You can really build up the coverage without getting cakey. This line is worth a look if you have a difficult to foundation-match skin color.