MCM color menu issue

[iamzip]

I'm adding color menus and also an option to break color selection down to RGB sliders in my mod's MCM but I've found a weird issue with the color swatch.  For red and green the range seems to appropriately be 0-255, but for blue it appears to be 0-223, or some other maximum, seems to be somewhat random.  I attached a couple pictures showing the issue.  Is there something I'm not understanding about the color menu here?  I double checked my code and it's identical between the three colors.

 

This appears to only be a color swatch issue, the color applied to the overlay ends up having the appropriate amount of blue, tested by setting 0,0,255.

Spoiler