John Bloor Printmaker on Nostr: No I don't have any formula, I normally choose Pantone colours and then use my ...

No I don't have any formula, I normally choose Pantone colours and then use my Pantone book to mix the inks by eye.

But unfortunately my Pantone book is old and it doesn't contain some of the colours, so I'm having to mix by eye against the image on my phone which is not ideal.

At the end of the day, when I print the colour proof I will make my final decision on how to tweak the inks.