Reply To: Profile-based color conversions?

Hi David!!!

All of this is in InDesign.

Given a way to convert accurately (taking the profile into account) a CMYK to LAB, I would create properly spaced (color-wise) in between colors given a start and end color. That way you could have variations for a given hue that could be precisely not too far or close (say a deltaE 2000 of 1 or 2 or whatever you want) from the referenced color. There’s many benefits to this, educationally as well. Showing people how faint hues are much more susceptible to slight color variations than fully saturated hues, for example.

What I want to do as well, now that I did this so far, is do the octagonal (similar to a honeycomb pattern) pattern where you progressively stray away from the center color and each direction takes you into a given hue. Left could be green, right could be red, top could be yellow and bottom could be cyan. Top left would be chartreuse.. etc. ala https://www.xrite.com/blog/lab-color-space EFI Fiery has something similar for their Spot Color Editor… https://www.efi.com/library/efi/images/products/1062/spot_on_editspotcolor_tn.png?h=192&w=200&la=en

I’m keeping the search alive! This is how I got what I have so far at least :-)

Cheers from Vancouver