Contact ChromaVue

Jonathan Grunberg

Inventor & Owner of ChromaVue

ChromaVue started as a very personal problem: I needed a way to work safely and accurately in low-voltage wiring while living with color vision deficiency. Traditional tools and "one size fits all" solutions weren't enough, so I spent years experimenting with calibration, custom test patterns, and opponent-hue treatments until I found a combination that made a measurable difference for me.

Once I reached a breakthrough that allowed me to reliably distinguish critical wiring colors and complete my job with confidence, it stopped feeling like just a personal workaround and started feeling like something that needed to be shared. Out of that work, ChromaVue was born—a platform designed to make structured, data-driven color training accessible to others who live with color vision limitations.

Behind the scenes, I've focused on more than just clever visuals. ChromaVue is built around consistent testing flows, careful tracking of progress, and a strong emphasis on privacy and security. I want you—and, where applicable, your clinic or school—to feel confident that the system is both trustworthy and actively maintained, not a "black box" you never hear about again.

If something isn't working as expected, if you're confused about a result, or if you simply want to share an idea or concern, you can contact me directly. I personally review incoming messages and will work with you to resolve issues or point you in the right direction.