Tuesday, February 7, 2017

Implications of Color in Map Design

For this week, we focused on color and how its effective use can make maps both easier to read and more efficient at conveying information accurately. To do this, we examined different styles of creating color scales that would be used for certain types of data on maps. Here are the three color scales I created using a linear progression system first, an adjustment of the linear progression second, and a third party created system third. The third color scale is made using the ColorBrewer service: http://colorbrewer2.org. All color values are denoted using the RGB color model.

The linear and adjusted progression color ramps are more based on calculations whereas the ColorBrewer ramp doesn’t appear to be. This is because the value increments between each class does not follow a particular numerical pattern. The ColorBrewer ramp does follow more along the same family of color though. For instance, I started with a darker purple color and ended up with a lighter purple color with distinguishable breaks in between. The linear and adjusted ramps both ended with the color white, which may end up not working with some maps.

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