Hue is the area of the color wheel that a certain color falls into. There are an infinite number of hues that go around the color wheel.
This scale demonstrates the few level of values that are possible. Value can also be referred to as lightness, colors going from white to black or vice versa.
On this color solid, that is made using a light mixture, we can see examples of all the above terms all summed up in one image. The saturation is the level of vibrance, or intensity of the hues moving from their hue to the corresponding gray value.
In Picasso’s painting, we can see the blue monochromatic color scheme that he used to create the cold feeling that he was feeling after his close friend died not long after making this painting. Being monochromatic, using only one color, makes this a much more unsettling painting than it would if it had more colors present.
An analogous color scheme is where the colors used are all in close proximity to each other on the color wheel. In this painting, the colors would be green, yellow, and blue. These are all next to each other and thus makes this an analogous painting.
This piece shows a complementary color scheme, meaning that it consists of colors that are opposite on the color wheel, because it uses blues/violets and yellow/greens. The yellow and violet are the closest to complementary colors and help the painting have more visual interest and harmony.
This photo is a great example of a split complementary color scheme. You can see the blue in the middle as well as the red orange and yellow orange in the rock formations.