When you are drinking wine, do you know that there is different color? Maybe you know there is red and white wine, but did you know that there is a lot more to it? Do you know the hue and depth are significant features when it comes to wine color?
Hue tells you about the shade or tint, and depths tells you about the relative brightness of the color.
What does these two features tell you about the wine? It tells you about the grape maturity, fermentation, duration of skin contact, cooperage, and wine age.