Something was off with the colors, couldn't quite figure it out until today. I based my idea on the Paulson Chip Tool, which is in RGB. I then proceeded to color pick from screenshots directly in my CMYK file (with US Web Coated SWOP v2 profile). With the limited gamut of CMYK, this resulted as expected in less saturation, but my main issue is that the green 1000 chip lost a lot of its contrast, mainly because of the "Day Green" spot becoming so close to the "Munzell Green" base. Now, I'm not sure if printing a bright green similar to Day Green is even possible with Tina, or if I should tweak the colors so that the spots are more contrasted on the 1000. It seems mostly fine for the other chips.
For reference, I re-did some exports with the different color spaces:
This is the original idea from the Paulson Chip Tool:
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This is the design with a RGB 16 bits color space (1000 is nicely contrasted):
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This is the design with RGB colors picked in a CMYK 16 bit document (1000 lacks contrast):
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The same document with
@Cratty 's suggested colors (1000 also lacks contrast, I'm wondering if it would do too IRL):
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