A notation system, called "HSL" that allows for calculation based on numeric RGB values in terms of hue, saturation, and luminosity is used when specifying and editing colors in Picture Style Editor. The HSL structure is analyzed here. The HSL notation used in Picture Style Editor is a color expression system comprised of three elements used to express color, namely hue (H), saturation (S), and luminosity (L). HSB notation, as used in Adobe Photoshop and others, is a similar color expression system, but is comprised of hue, saturation, and brightness (B). This similarity may seem confusing, but once you understand the difference between them, color can be intuitively edited in Picture Style Editor. Color also exists at the center White conditions = Hue: all; Saturation: all; Luminosity: 100 Maximum value of luminosity and saturation Luminosity Saturation 100 0 75 33 50 100 25 33 0 0 HSL Maximum value of luminosity and saturation Luminosity Saturation 100 100 75 100 50 100 25 100 0 100 HSB/HSV The center is white. White conditions = Hue: all; Saturation: 0; Brightness: 100 Please refer to the 3D models to understand how the HSL numeric values relate to changes in the colors. HSB is expressed as a cylindrical column, while HSL is expressed as two cones within a cylinder. Understanding and Using CMS - Recommendation to calibrate monitor Understanding and Using CMS - Color management settings for software Understanding and Using CMS - Color management settings for printouts Understanding Color Space - Various color spaces and the color space width Understanding Color Space - Understanding the HSL color system Understanding Color Space - HSL color system value range and Picture Style Editor functions