In a geometric sense, the hue of this cone extends in a circle as shown at the top of this figure. The circle shape is consistent as the cone narrows to a point. The reason that hue can be constructed in a circle in the RGB or HSV color space is due to the fact that the color loops from red to red. For example, on the color wheel, color is defined in the following way: red, violet, blue, green, yellow, orange, and back to red again.
Saturation is the transition from one shade to another of a specific color. The saturation starts out at full color in all colors around the circle demonstrating hue. As the hues start to move inward, the shades are incremented and become lighter and lighter until they are white, illustrated by the black dot in the middle of the circle. This means they are desaturated.
This website helped me to review desaturation.
http://en.wikipedia.org/wiki/Colorfulness
The value, illustrated by the dashed line extending down from the black point, represents the spectrum of color from white to gray to black and every shade in between just those three colors. As the hue extends toward the bottom point of the cone, the hues of the circle transition from gray in the middle to black in the middle. The cone reduces in shape to a point from a circle above because as any color approaches black, the transitions of color are reduced as well, which was discussed in class. Taking the opposite viewpoint, there are more transitions of color at the top in the circle of hue due to white and its natural tendency to slightly lighten any color toward pastel colors and then white. This exercise did assist me in perceiving color space geometrically.
In addition, the above diagram can be thought of in powers of ten. For example, the lowest and darker point of color represents the integer 10. As the powers of ten are magnified, the color space becomes lighter and larger until it displays its fullest and brightest color. This exercise did assist me in perceiving color space geometrically.
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