Are you generating a set # of steps along that spectrum? Aka will the base palette eventually wrap around with enough worlds? (also see: cubehelix, and chroma-js’s great interactive demo of it)
Then again, if each world’s palette chooses multiple colors from the base one, that’s a hell of a lot of combinations
The nerding out about color spaces is great with this one.
Man, there are going to be some cool looking worlds & builds at launch. The Sand Box may have to grow a smidge 