Color provides functions for blending colors, convenience blending (tint and shade), and adjusting the hue, lightness, or chroma of a given color.

These functions require your color to be represented in CIE L*Ch. The reason for this is because the L*CH color space represents colors closest to how the human eye sees them. Blending and transforming a color in L*Ch maintains the brightness of the colors more accurately. Here is a link to a blog post by someone detailing the differences and documenting them well: Improved Color Blending.

NOTE: the transformations between color spaces are intensive, if you have a HEX or RGB color it first needs to be transformed to the CIEXYZ color space, then the CIELAB space, and finally to CIELCH.

I may at some point try to generalize the function's types but I wanted to first support CIELCH as the transformation format.