At several occasions I heared people discussing about the „colors“ of Lebesgue spaces $L^p$: $L^2$ is red, $L^1$ is white, $L^\infty$ is black, and the other $L^p$ are blue or violett. Of course this is somehow inspired by the rainbow spectrum - still I always found it fascinating that many mathematicians share this imagination or feeling about these spaces and their relations, even though this seems not written in a text book or somewhere else, at least to my knowledge.
I would like to know if there are more people sharing this or a similar imagination? Are there other imaginations of Banach spaces that people intuitively share?
Please feel free to close this question if it is too soft or not appropriate.
