Erik Mona said:A surprisingly large number of our readers are colorblind, and are not always able to read colored text. We still sometimes do it in headers and stuff, but it's something we've got to keep in mind. If all precast spells are listed in red, and someone can't see red (or whatever), I think that guy would be right to complain.
Also, speaking as the captain of the ship, adding a color-coding system for the magazine text would be like opening a Pandora's Box of potential errors, and is not worth the trouble, I'm afraid.
Other folks at other companies may very well disagree, and I wish them luck.
--Erik Mona
Editor-in-Chief
Dragon & Dungeon
Red and green are the two colors most colorblind people can't see as "red" and "green." (Some have trouble with blue and yellow, and some research* shows there's a wider variety than I am familiar with - I am not color blind.) They're browns or greys, generally speaking. They're the same grey or brown if their saturation is the same; otherwise they're distinct.
Again, the considerate designer attempts never to use red and green in important displays. (Traffic lights have two exclusive indicators of current state: color and vertical position.) In general, because of lighting and reflectivity issues alone I'd stay away from using color as an indicator as much as I could.
* Research:
Computer display color recommendations: http://tinyurl.com/922ml (sunglasses required)
Simulation of color blindness: http://colorlab.wickline.org/colorblind/colorlab/
- Ket