Creating a thematic map where individual values are displayed as colors and range values are displayed as shades of those colors

I am trying to create the following thematic map using Mapinfo professional:

I have point data that is displayed as a grid. I need to create a thematic map where I show two fields - one representing the land use type (individual values) and one representing emissions (ranges). I need to show each of the four land use types with different colors. The shade i.e. darkness of each color represent the emissions produced by that land use type. I want to make two legends, one displaying the land uses (colors), one showing the ranges for emission data.

Below is an example of what I am trying to create. This is probably a simple task but I'm stuck. All help is appreciated.