It should be a different color, because this will be attached to either politics (which you don't want) or EU (which you also don't want), some completely independent color could actually trigger curiosity to look it up.

Disagree, though you’re right it’s a little bit similar to the eu flag, but only a little, plenty of countries manage with more similar flags.

Flags don’t exist for the period where they’re gaining recognition. Compromising the significance of the iconography for the temporary gain of not being misidentified during the period it isn’t recognisable would just mean if it gains recognition it will forever be less than it could be.

In other words, with flags you need to play to win, not to survive. Better that the attempt have a higher risk of failure with a great flag than a lower risk with a mediocre flag.

The pale blue dot is an excellent way to represent a global outlook and “we’re all in it together”, not sure I can think of a better pedigree for this concept. I’d perhaps have been tempted to make it a smaller blue dot, but flags do need to be recognised at a distance, so it can’t be too much smaller.

I believe its a reference to the planet being a pale blue dot.

https://en.wikipedia.org/wiki/Pale_Blue_Dot