Hue [hwe] 色调 : Hue is what most people think of when we say "color."
Saturation /ˈsætʃə'reʃən/ 饱和度 : Saturation is the "purity" of the color, refers to the amount of white light (or gray paint) mixed with the hue.
Value (Brightness) 亮度 : Brightness is the amount of light or white the color contains.
Color wheels : http://www.devx.com/projectcool/Article/19954/0/page/4
Color categories : http://www.devx.com/projectcool/Article/19954/0/page/5
HSV Color Model : Hue, Saturation, Value
RGB Additive Color Model : Red, Green, Blue -- project
CMYK Subjective Color Model :Cyan, Magenta, Yellow, Black -- print
For more info :What is color.
http://www.devx.com/projectcool/Article/19954/0/page/1
