The colors are are arranged along a circle reflecting the cyclic nature of the perceived color spectrum. The colors are therefore indicated with the attribute Hue in degrees ranging from 0° to 360°.

The Luminance is in this model a relative measure of whiteness. Because it is relative to the absolute luminance of a white point Luminance is ranging from 0 to 1.

The Saturation is a measure of color intensity it is ranging from 0 to 1.
The maximum value of Saturation is depending on the value for Luminance as illustrated in the righthand figure below.

Moreover if we use a granular HSL model in which both the Luminance and the Saturation are expressed in multiple units of 0.01 and the Hue in integer values for degrees, these values will not exactly correspond with the integer RGB values. So the possibilities to identify the proper integer RGB values in the examples of the color sequences according to the HSL model as shown below are limited.

In practice approximations are used in the calculations to convert HSL color values into RGB color values and vice versa. The introduced color differences are distinguishable for systems which uses a color resolution or color depth beyond 24-bit (true color). But these color difference are indistinguishable for the human eye which can discrminate up to ten million color variations which is less then 2²⁴ which is equal to 16,772,216.
A 24-bit color depth is used by every personal computer and phone display. With a 24-bit color depth all the integer RGB values are covered.