Ever have a color and not sure if it's a purple or an indigo? Just put the hex represented value here and I'll figure it out. Or do what I do and just start clicking around until you find a color you like. Adjust the sliders to prioritize colors by HSV.

Color Set:
Input Color Color Name Hex RGB

Sources: w3.org & Hex Words

Color difference is modeled by the distance between the two coordinates in LAB space.