I’ve been working on user experience for All Angles and I really want to use Red and Green as indicators. The main problem is I heard of a a common Red-Green Colorblindness and many people can’t tell the difference. If it’s used as an indicator then they loose that information. I believed that if I use enough contrast then most anyone can tell the difference even in black and white but how can I be reasonably sure that all the information I share is understandable. I found a great color blindness simulator that I used. They didn’t have a red/green colorblindness but checked out all the options and only the Monochrmacy was hard to distinguish. I guess I need to darken the Red and Lighten the Green. Here is the original followed by the other pictures.