A few years ago, a conversation with a colour‑blind stakeholder quietly reshaped the way I design. I had built a dashboard using the classic red–amber–green palette. For months, he asked for updates that didn’t make sense to me, until he finally shared that he couldn’t see the colours at all.
That moment stayed with me. It changed how I think about inclusion, how I teach accessibility, and how I build tools that help others avoid the same unintentional barriers.
So today, on Global Accessibility Awareness Day (GAAD), I’m celebrating that journey with something new: I’ve just published FxColorBlindSim, a Power Query M function that simulates seven types of colour‑vision impairments directly inside Power BI.
Repository: Juls-BI/FxColorBlindSim
It supports:
- Protanopia
- Protanomaly
- Deuteranopia
- Deuteranomaly
- Tritanopia
- Tritanomaly
- Achromatopsia
It’s lightweight, open, and built for real‑world use.
Why This Matters on GAAD
Global Accessibility Awareness Day is about encouraging people to think, talk, and learn about digital access, and to recognise how our everyday design decisions shape who can fully participate.
FxColorBlindSim is just a small step in that direction, something practical that grew out of real conversations, real challenges, and the desire to make everyday design choices work better for more people.
If you’re curious to try it out or see how it works in practice, the repository is open for you to explore.
