Make card darkmode even if in lightmode

[KendallDoesCoding]

I was trying to make the darkmode color actually black instead of dark blue, but I messed something up so the cards became in the dark blue color, it actually looks nice even in lightmode, so if @collab-community/journey-book likes this, can we make the user card perm this color?

[Agrim-Sharma174]

I think, all the other texts(heading and nav items) are very light.
Rest, nothing wrong with this dark blue color
Creating an optical illusion though...