Hey DanBGold ! There are a few reasons, but the most important are:
- It's very easily understood by a lot of people
- The math to compare colors is very fast
- I started with a very cheap photospectrometer that didn't give this information
For each page load of a swatch, if you have a custom library configured (in the settings page), all of the color comparisons are being run in real time to render the page. For each swatch detail page, that's 50-75 full color comparison calculations on page load, and it needs to be as transparent as possible to the end user. By using RGB, it strikes a good balance between "usable math" and "explaining color in a way that the end user is familiar with".
We're in the process of upgrading our photospectrometer to something that will give those measurements as well, and once we finish rescanning the entire library, I'd like to build a way to toggle between color systems... but that is a ways away.
