9 Application functions9-4 CS240/CS231General information about colorEverybody has an idea of what hue an object has, for example, anapple is red, a lemon is yellow, and the sky is blue. Hue is the tint bywhich the color of an object is classified as red, yellow, blue, etc.Brightness is the degree of lightness in a color, as compared withanother color, which makes it a light color or a dark color. Forexample, when comparing the yellow of a lemon and the yellow of agrapefruit, it is obvious that the yellow of the lemon is brighter. Butwhat about when comparing the yellow of a lemon and the red of abean? Obviously, the yellow of the lemon is brighter. Brightness isthis degree of lightness that enables comparison regardless of thehue.What makes the difference between the yellow of a lemon and theyellow of a pear? By saying that the lemon is a more vivid yellow andthe pear is a duller yellow, the difference between the two colors isstated in terms of saturation, as opposed to brightness. As opposedto hue and brightness, saturation is the characteristic that indicatesthe degree of vividness.
