There are quite a few online tools that will audit an existing website for color accessibility or will aid in creating text/color palette choices. What these tools don't do, is allow the flexibility to select color right at the application level. Color Oracle is a free, cross-platform full screen color simulator that reproduces the three forms of color deficiency in real time from any application, windows, etc. independently of the software that you may be using at the time it's enabled. The Mac version can be launched directly from the desktop's menu bar, making the application always available until you physically quit out of it. You can also configure Color Oracle to start up on log in, and customize it to accept F key commands to dynamically navigate through the 3 types of color deficiencies. With color deficiencies affecting approximately 1 in 12 men (8%) and 1 in 200 women in the world , there's no excuse not to make this seamless tool a part of an interf