Colors vs Values artist's tip and technique in digital illustration

Colors vs Value compare for artists.   Artist's tip and technique in digital illustration

Here is the definition of value from Munsell
Value, or lightness, varies vertically along the color solid, from black (value 0) at the bottom, to white (value 10) at the top. Neutral grays lie along the vertical axis between black and white.

Here's an excerpt from what Craig Mullins (Master Painter)