If you are wondering why this page even exists, the answer is rather simple - because it can be useful to someone, like it was udeful for me. One day I was in need to make a 16 step color ramp for my art, and I found quite a lot of them used in sprites, ripped from 8bit and 16bit games. But I wanted to be able to make my own prety fast, so after a couple of hours this page was born. So no you can make your own 16, 8 or 4 step color ramps for your needs.
There are couple of other similar great projects out there that might be helpful, check them out.
They are straight simple. This is a completely freeware online tool. If you are a pixel artist, or any other kind of artist, you are 100% encouraged to use this tool for any kind of color designing activity you imagine.