William thought he could just make out a slightly darker shape.

One of your eyes is slightly darker than the other.

The bill is yellow, and slightly darker towards the base.

If it's too light, try again with a slightly darker kit.

Per usual, the series gives a slightly dark twist on the present lives of the characters.

Were her nipples slightly darker than they had been that first night?

The rust color of the 7th impression seems slightly darker than the 8th.

The cell spot has the form of a large black dot followed by a small slightly darker area.

She has hair slightly darker than Carol's, although her eye color is that of a blonde woman's.

It, in turn, is framed on three sides by a slightly darker speaker.