Why Should Engineers and Scientists Care About Color (and Design)?

Posted to Design  |  Nathan Yau

I studied electrical engineering and computer science in undergrad and now as a stat student, I still work with a lot of engineers and scientists. Something that has always confused me as I walk through the engineering (and statistics) halls of conference posters is the use of the rainbow color scale.

I can think of two reasons for this – the authors felt that more colors meant more pretty or default settings got the best of them. I want to say it’s the latter, but I’ve worked with plenty who felt the former. Bernice Rogowitz and Lloyd Treinish from IBM discuss why use of all colors of the rainbow should stay in your lucky charms when visualizing certain types of data.

Three Perceptual Dimensions

Three Perceptual Dimensions

The authors go over a lot of stuff, but the main take away (for me, at least) was the three perceptual dimensions – hue, saturation, and luminescence. Luminescence is the how bright something appears; saturation is the intensity of color; and hue is the actual color. To represent continuous metrics, it was found that use of hue is poor while it’s easier for us to interpret continuous changes (i.e. magnitude information) with saturation and luminescence. For interval data with a threshold, you can use multiple colors.

Here’s a good example:


Both images represent the same exact data. The only difference is in the color scale. Look at the left one. Now look at the right one. What does the right one look like? What does the left one look like?

That’s why you should care about color.



Marrying Age

People get married at various ages, but there are definite trends that vary across demographic groups. What do these trends look like?

Top Brewery Road Trip, Routed Algorithmically

There are a lot of great craft breweries in the United States, but there is only so much time. This is the computed best way to get to the top rated breweries and how to maximize the beer tasting experience. Every journey begins with a single sip.

Famous Movie Quotes as Charts

In celebration of their 100-year anniversary, the American Film Institute selected the 100 most memorable quotes from American cinema, and …

19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.