HSB model

HSB is a color model that is somewhat analogous to Munsell's system of hue, value, and chroma in that it uses three similar axes to define a color. HSB is derived from RGB color spaces and is a device dependent color space. In HSB, the three fundamental characteristics of color are:
• Hue is the color reflected from or transmitted through an object. It is measured as a location on the standard color wheel, expressed as a degree between 0° and 360°. In common use, hue is identified by the name of the color such as red, orange, or green. To view the color wheel,.
• Saturation, sometimes called chroma, is the strength or purity of the color. Saturation represents the amount of gray in proportion to the hue, measured as a percentage from 0% (gray) to 100% (fully saturated). On the standard color wheel, saturation increases from the center to the edge.
• Brightness is the relative lightness or darkness of the color, usually measured as a percentage from 0% (black) to 100% (white).
You can use the HSB model in Photoshop to define a color in the Color palette or Color Picker dialog box, but there is no HSB mode available for creating and editing images.



HSB model H. Hue S. Saturation B. Brightness