-At a former employer, I volunteered - as in, bullied my way into - the test group for our SCADA GUI front-ends.

This resulted in palettes for both deuteranopes and tritanopes; our support staff on occasion had calls from customers who had inadvertently activated one of the color schemes for the chromatographically challenged - they typically went along the lines of 'Did you nincompoops have some colorblind sod do your GUIs?'

-'Matter of fact, we did. Would you like me to put you through to him?'