Match to futuristic/space Traveller ooh. this would be a super fun project. color-match spectrum of a favorite photo. even more so if the spectrum was also collaged from photos, not just color matched on illustrator.
Monochrome dark blue color palette reminds of mystery of the sky before a thunderstorm. Transition from deep dark blue color to pure white is contrast and at the same time softened with pastel shades of blue. Perfect color for the interior of bathroom