LCHColor

LCHColor[l,c,h] represents a color in the LCH color space with lightness l, chroma c and hue h.

LCHColor[l,c,h,a] specifies opacity a. 

LCHColor["string"] returns a color from an HTML color name etc.

LCHColor[color] returns the LCH representation of color.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.