[frotty]

comparing # to # the blue seems far more vibrant and opaque to the others.

compare all of the 5s next to each other and the blue is electric where the other colors look like a tint is applied.

obviously YMMV based on monitor gamma and color profile, but was the intention that each # have a similar tint to the pure color? Because this appears to essentially be a similar system to RGB/CMYK in different notation, over a Munsell Color System implementation that creates equivalence in color perception based on intensity scaling.

[NetOpWibby]

Not necessarily. No "formula" helped me arrive at these colors, I just eyed it and made adjustments until they worked for me.