NetLogo 7.0.0-beta2:

palette:with-saturation

color palette:with-saturation number

Reports an RGBA color with saturation component in HSB color space equal to number and the other HSB components of the input color unchanged. An error message results if number is not in the range 0 to 100.

Example:

show red palette:with-saturation 50 ;; [215 113 108]

Take me to the full Palette Extension Dictionary