[ugh123]

Webb uses mid-infrared to capture the image. I'm not sure if they then assign colors arbitrarily.

Hubble uses visible light and I prefer this image from an artistic standpoint as it seems to capture depth better.

[hrnnnnnn]

It's not arbitrary. They assign colours in order based on wavelength, so the shortest wavelengths will be bluer and the longest wavelengths will be redder.

[ugh123]

Makes sense. Thank you