Rainbow Chart – Twitter Messages Per Day
Below is a great example of the wrong use of color in a column chart. Use color to differentiate between segments, but don’t use it when time is on the x-axis for the different days.
A better use of color may be for each quarter within the year. Using the chart below, it would make more sense to have every first week of the month always in one color, like blue. Then, at least you could easily compare the first week of each month quickly. I’m not even going to touch the chart title not matching to what is actually being displayed in the graph – days vs. weeks.
You really can’t make the color mistake if you used a line graph, just saying.
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