Each color reaches its greatest Chroma at one particular value, which can also be described as peak home value or peak saturation. The Peak value varies from color to color. Red, for instance, reaches is maximum saturation in the middle values, where as blue gets most intense in the dark values.
The charts below help to further illustrate this point. Included is this weeks limited palette that we are using.
Here is an example of Peak Saturations in different colors at different values: