Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
Intercom on Product Management - The ultimate resource for aspiring product managers
Colour Blindness Simulator - Use our Colour Blindness Simulator to reveal how your images may appear to users with a variety of...
Product School - The global leader in product management training
Colorblind Web Page Filter - Enter a URL, and this tool will render it as someone with color blindness will see it.
The Product Management guide - A book on how to create and ship products that people love