I ported these color scales to d3-scale and D3 4.0: https://github.com/d3/d3-scale/blob/master/README.md#sequential-scales https://github.com/d3/d3-scale/blob/

I ported these color scales to d3-scale and D3 4.0: https://github.com/d3/d3-scale/blob/master/README.md#sequential-scales https://github.com/d3/d3-scale/blob/master/README.md#sequent...