A company I used to work for provides custom colour classifying solutions for various industries. Classifying products into colour categories was one use case. Other uses were around perception, quantifying how different two colours were, trying to help contrast colours for colour blindness etc. They used a very different approach to this, which was a bit technical for someone not versed in colour science like me, but fascinating nonetheless. It would be interesting to compare the results between these two approaches.<p><a href="https://www.lumesca.com/" rel="nofollow">https://www.lumesca.com/</a>