Derwent Cumberland make a great pencil that will draw equally well on wet or dry paper. They come in a broad range of colors, however some are not really lightfast. Fortunately most of the browns, greys, earth colors, and many of the blues are, according to the list below, tested to be lightfast.
Inktense pencils will produce a strong dark mark on wet or dry paper.
Light shading can be quickly dissolved with a damp brush to make subtle watercolor like washes. Once these washes dry they are permanent and insoluble just like permanent ink. This means they can be worked over without being disturbed.
Drawing with Inktense pencils and a damp brush produces interesting results hovering somewhere between pencil and watercolor.
The sketch above was done with a dark brown (Bark 2000). I haven’t experimented with colors yet, but imagine they would be a lot of fun. I have used the Bark (2000) pencil and the Charcoal Grey (2100) in a number of watercolor paintings and I’m really happy with the results.
The pencils are nice and smooth to use and release pigment easily. They sharpen well and the leds, being of a waxy consistency, are resistant to fracturing
Read more about them on the Derwent website (link opens in new window)