I'm not saying that color alone makes it better than greyscale, that'd be absurd. What I'm saying is that for the same "percentile of quality", color wins pretty much always.

Since full-color as a set technically includes the B&W set (and in the case on point of Solo Leveling, there are some scenes that are notably impressive while being mostly B&W! or grayscale with a shadow hint in other color) then it's a truism that full-color reaches to heights that B&W can never reach.