Reply To: Color Change

Hi
This has nothing to see with Spot colors.
As soon as you add an element with any kind of transparency involved (drop shadow, PNG, etc.), Indesign will convert all colors to the transparency blend space you’ve chosen.
In your case : CMYK

Question is: What is the final output of your document? Print? Web?
If it’s going to be printed, you should not work with RGB swatch. What you call “good” is not printable I’m afraid…
If it’s going to be for Web purpose, then you can maintain the RGB. Then go Edit > Transparency Blend Space and change to RGB.

Hope that helps
Vinny