I was looking on TMP  and found this useful chart

http://scalemodeldb.com/paint

good find 

That IS clever.....Though I assume different folks' screens won't necessarily show identical colours ?

But a very good starting point.

Cheers - Phil

I've used that site in the past, I wasn't too impressed with some of its 'matching' colours.

I suggest you try some colours you have similar shades for from different ranges and see if it recognises them as matches.

Book marked for future reference , with caveats noted

Thanks! Useful. Ditto what Techno said.